McMaster-Carr logo
    Filter by
    System of Measurement
    V-Block Style
    Machinable
    Number of Vees
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Maximum Magnetic Pull
    Jaw Width
    Attribute Image
    Vise Type
    Mounting Hole Center-to-Center
    Mounting Slot Height
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    145 Products

    Economy V-Blocks

    Image of Product. 1 Vee. Front orientation. Contains Annotated. V-Blocks. Economy V-Blocks, Standard V-Blocks, 1 Vee.
    Image of Product. 4 Vees. Front orientation. Contains Annotated. V-Blocks. Economy V-Blocks, Standard V-Blocks, 4 Vees.

    1 Vee

    4 Vees

    When high precision isn’t critical, choose these V-blocks to hold and position round workpieces. Made from cast iron, they’re a solid, stable choice in high vibration areas. They’re made in pairs to ensure their height, faces, and grooves match, so your workpiece sits level and parallel across both. However, they’re not machined to the same tight tolerances as steel and granite V-blocks. They’re also not as strong as steel under heavy loads, so they may deform or crack over time.
    4 Vees—V-blocks with 4 vees have different-sized grooves on each side to support a range of diameters.
    Tolerance
    No. of
    Vees
    For Max. Workpiece
    Dia.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Squareness
    Parallel
    Material
    Machinable
    Pair
    Sold as Matched Pair
     
    Standard V-Blocks
    11"1 1/4"2"1 7/8"90°1/2"1"Not Rated0.0019"IronYes2227A13000000
    11 3/4"15/16"2"1 1/4"90°1/8"1"0.0012"0.0012"IronYes2227A1900000
    12 3/8"1 1/4"3"2 3/8"90°13/16"1 3/4"0.0012"0.0012"IronYes2227A900000
    12 15/16"1 5/8"4"2 5/8"90°1"2 3/16"0.0012"0.0012"IronYes2227A200000
    13 1/8"2"5"3 3/16"90°1 1/8"2 3/8"0.0016"0.0016"IronYes2227A7000000
    14 5/16"2 1/2"6"3 1/2"90°1 1/2"3 3/16"0.002"0.002"IronYes2227A8000000
    14 1/2"5 1/2"8"8"90°2 1/4"4 1/2"Not Rated0.0019"IronYes2227A14000000
    14 15/16"2"6"4"90°2 1/8"4 3/16"0.002"0.002"IronYes2227A11000000
    14 15/16"4"7"5 1/2"90°1 11/16"3 5/8"0.002"0.002"IronYes2227A12000000
    15"6 5/8"10"10"90°2 1/2"5"Not Rated0.0019"IronYes2227A15000000
    16 1/4"4"8"5 1/2"90°2"4"0.0024"0.0024"IronYes2227A18000000
    16 5/16"2 1/2"7 1/4"5 1/4"90°2 5/8"5 1/8"0.0024"0.0024"IronYes2227A5000000
    17 7/8"2 7/8"8 7/8"6 1/2"90°3 7/16"6 11/16"0.0024"0.0024"IronYes2227A6000000
    42"1 3/8"3 3/4"2 3/4"90°1"
    13/16"
    5/8"
    3/8"    		2"
    1 3/16"
    1 9/16"
    3/4"    		0.0012"Not RatedIronYes2227A16000000
    42 3/8"1 3/8"4 3/4"4 3/4"90°1 3/16"
    1"
    13/16"
    5/8"    		2 3/8"
    1 9/16"
    2"
    1 3/16"    		0.0012"Not RatedIronYes2227A17000000
     

    V-Blocks

    Image of Product. Style A. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style A.
    Image of Product. Style B. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style B.
    Image of Product. Style C. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style C.

    Style A

    Style B

    Style C

    Image of Product. Style A with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style A.
    Image of Product. Style B with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style B.
    Image of Product. Style C with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style C.

    Style A with Clamp

    Style B with Clamp

    Style C with Clamp

    Image of Product. Style D with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style D.
    Image of Product. Style D with Clamp (Side Orientation). Side1 orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style D.
    Image of Product. Style E with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style E.

    Style D with Clamp

    Style D with Clamp (Side Orientation)

    Style E with Clamp

    Image of Product. Style F with Clamp (45° Position Shown). Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style F.

    Style F with Clamp (45°

    Position Shown)

    Precision ground to tight tolerances, these V-blocks help you accurately align and support round workpieces.
    Sold Individually
    Image of Product. Style A. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style A.
    Image of Product. Style B. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style B.
    Image of Product. Style C. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style C.

    Style A

    Style B

    Style C

    Image of Product. Style A with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style A.
    Image of Product. Style B with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style B.
    Image of Product. Style C with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style C.

    Style A with Clamp

    Style B with Clamp

    Style C with Clamp

    Image of Product. Style D with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style D.
    Image of Product. Style D with Clamp (Side Orientation). Side1 orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style D.

    Style D with Clamp

    Style D with Clamp (Side Orientation)

    Image of Attribute. Front orientation. Contains Annotated. V-Blocks.
    V-Blocks with Clamp—Choose a block with a clamp to secure your workpiece in place. The clamp is removable and shaped to fit inside the vee, so you can face it up or down to hold a variety of workpieces. Since it’s flush with the block faces, you can position the blocks on any of their sides.
    Steel—Steel blocks are easier to machine than hardened steel, so you can customize them to fit your workpiece.
    Hardened Steel—Hardened steel blocks are more durable and wear resistant than steel blocks, so they’ll stay precise even with heavy use.
    Styles A and B—Styles A and B have mounting slots near their base, so you can attach them to work surfaces with setup clamps (not included).
    Style C—Style C have mounting slots near their base, so you can attach them to work surfaces with setup clamps (not included). They have a continuous slot, so you can clamp any of the sides.
    Style D—Style D have tapped holes, so you can mount them to face or angle plates. They have an extended base with a second vee, also known as a fishtail. The clamp is smaller than the outer width of the block—use the adjustable screw to support the block when it’s positioned on either side.
    V-Blocks
    Replacement
    Clamps
    For
    Workpiece Dia.
    Through
    Holes
    Tolerance
    Style
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    No.
    of
    Thread
    Size
    Dia.
    Squareness
    Parallel
    Mounting
    Slot Ht.
    Machinable
    Each
    Each
    Standard V-Blocks
     
    Steel
    A5/32"1 5/8"2 1/2"2 1/2"2"90°3/4"1 1/2"———0.0002"0.0002"3/8"Yes2361A760000000———0
    A5/32"3 3/4"3"5"3"90°1 5/8"3 1/4"———0.0002"0.0002"5/8"Yes2361A78000000———0
    B5/32"2 7/8"3"4"3"90°1 3/16"2 5/16"———0.0002"0.0002"5/8"Yes2361A77000000———0
    C5/32"4 3/8"6"6"4"90°2"4"———0.0003"0.0003"5/8"Yes2361A79000000———0
     
    V-Blocks with Clamp
     
    Steel
    A5/32"1 5/8"2 1/2"2 1/2"2"90°3/4"1 1/2"2—5/16"0.0002"0.0002"3/8"Yes2361A66000000———0
    A5/32"3 3/4"3"5"3"90°1 5/8"3 1/4"2—5/16"0.0002"0.0002"5/8"Yes2361A68000000———0
    B5/32"2 7/8"3"4"3"90°1 3/16"2 5/16"2—5/16"0.0002"0.0002"5/8"Yes2361A67000000———0
    C5/32"4 3/8"6"6"4"90°2"4"2—7/16"0.0003"0.0003"5/8"Yes2361A6900000000———0
     
    Hardened Steel
    A5/32"1 5/8"2 1/2"2 1/2"2"90°3/4"1 1/2"2—5/16"0.0002"0.0002"3/8"No2361A61000000———0
    A5/32"3 3/4"3"5"3"90°1 5/8"3 1/4"2—5/16"0.0002"0.0002"5/8"No2361A63000000———0
    B5/32"2 7/8"3"4"3"90°1 3/16"2 5/16"2—5/16"0.0002"0.0002"5/8"No2361A62000000———0
    C5/32"4 3/8"6"6"4"90°2"4"2—7/16"0.0003"0.0003"5/8"No2361A6400000000———0
    D1/8"1 5/16"3 1/2"1 7/8"1 7/8"90°5/8"1 1/8"33/8"-16
    		—0.0002"0.0002"1/2"No22305A6800000022305A69000000
     
    Sold as Matched Pair
    Image of Product. Style A. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style A.
    Image of Product. Style B. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style B.
    Image of Product. Style C. Front orientation. V-Blocks. V-Blocks, Standard V-Blocks, Style C.
    Image of Product. Style A with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style A.

    Style A

    Style B

    Style C

    Style A with Clamp

    Image of Product. Style B with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style B.
    Image of Product. Style C with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style C.
    Image of Product. Style E with Clamp. Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style E.
    Image of Product. Style F with Clamp (45° Position Shown). Front orientation. V-Blocks. V-Blocks, V-Blocks with Clamp, Style F.

    Style B with Clamp

    Style C with Clamp

    Style E with Clamp

    Style F with Clamp (45°

    Position Shown)

    Image of Attribute. Front orientation. Contains Annotated. V-Blocks.
    Matched pair blocks are ground together, so their heights, faces, and grooves are identical. When you rest your workpiece across the two blocks, they keep the centerline level.
    V-Blocks with Clamp—Choose a block with a clamp to secure your workpiece in place. The clamp is removable and shaped to fit inside the vee, so you can face it up or down to hold a variety of workpieces. Since it’s flush with the block faces, you can position the blocks on any of their sides.
    Steel—Steel blocks are easier to machine than hardened steel, so you can customize them to fit your workpiece.
    Hardened Steel—Hardened steel blocks are more durable and wear resistant than steel blocks, so they’ll stay precise even with heavy use.
    Styles A and B—Styles A and B have mounting slots near their base, so you can attach them to work surfaces with setup clamps (not included).
    Style C—Style C have mounting slots near their base, so you can attach them to work surfaces with setup clamps (not included). They have a continuous slot, so you can clamp any of the sides.
    Style E—Style E have tapped holes, so you can mount them to face or angle plates. They have a clamp that extends past the faces, which limits tool clearance.
    Style F—Style F have a clamp that sits flush with the faces, so you can position these blocks on any side. Switch the clamp between upper and lower grooves to adjust the height. Position the set screw at 45° or 90° to hold either square or round workpieces.
    V-Blocks
    Replacement
    Clamps
    For
    Workpiece Dia.
    Through
    Holes
    Tolerance
    Style
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    No.
    of
    Thread
    Size
    Dia.
    Squareness
    Parallel
    Mounting
    Slot Ht.
    Machinable
    Pair
    Each
    Standard V-Blocks
     
    Steel
    A5/32"1 5/8"2 1/2"2 1/2"2"90°3/4"1 1/2"———0.0002"0.0002"3/8"Yes2361A430000000———0
    A5/32"3 3/4"3"5"3"90°1 5/8"3 1/4"———0.0002"0.0002"5/8"Yes2361A4500000000———0
    B5/32"2 7/8"3"4"3"90°1 3/16"2 5/16"———0.0002"0.0002"5/8"Yes2361A44000000———0
    C5/32"4 3/8"6"6"4"90°2"4"———0.0003"0.0003"5/8"Yes2361A4600000000———0
     
    V-Blocks with Clamp
     
    Steel
    A5/32"1 5/8"2 1/2"2 1/2"2"90°3/4"1 1/2"2—5/16"0.0002"0.0002"3/8"Yes2361A38000000———0
    A5/32"3 3/4"3"5"3"90°1 5/8"3 1/4"2—5/16"0.0002"0.0002"5/8"Yes2361A4100000000———0
    B5/32"2 7/8"3"4"3"90°1 3/16"2 5/16"2—5/16"0.0002"0.0002"5/8"Yes2361A3900000000———0
    C5/32"4 3/8"6"6"4"90°2"4"2—7/16"0.0003"0.0003"5/8"Yes2361A4200000000———0
     
    Hardened Steel
    A5/32"1 5/8"2 1/2"2 1/2"2"90°3/4"1 1/2"2—5/16"0.0002"0.0002"3/8"No2361A33000000———0
    A5/32"3 3/4"3"5"3"90°1 5/8"3 1/4"2—5/16"0.0002"0.0002"5/8"No2361A3500000000———0
    A5/32"5 1/4"6"7"4"90°2 1/2"4 15/16"2—7/16"0.0003"0.0003"5/8"No2361A3700000000———0
    B5/32"2 7/8"3"4"3"90°1 3/16"2 5/16"2—5/16"0.0002"0.0002"5/8"No2361A3400000000———0
    C5/32"4 3/8"6"6"4"90°2"4"2—7/16"0.0003"0.0003"5/8"No2361A3600000000———0
    E1/8"1"1 5/8"1 1/4"1 1/4"90°7/16"13/16"11/4"-20
    		—0.0002"0.0002"1/4"No2221A110000002221A21000000
    F1/8"2"2 1/2"3"2"90°3/4"1 1/2"13/8"-16
    		—0.0002"0.0002"3/8"No2203A110000002203A2100000
     

    Miniature V-Blocks

    Image of Product. Front orientation. Contains Annotated. V-Blocks. Miniature V-Blocks.
    Place into larger V-blocks to hold small shafts and cylinders. Set includes two clamps that fit different workpiece diameters.
    For
    Workpiece Dia.
    Tolerance
    No. of
    Pieces
    Min.
    Max.
    Lg.
    V
    Angle
    V Dp.
    Squareness
    Parallel
    Material
    Machinable
    Includes
    Each
     
    V-Blocks with Clamp
    21/32"9/32"2 3/8"90°1/8"0.0002"0.0002"SteelNo1 V-Block for 1/32" to 5/32" Workpieces—5/8" Wd. × 1" Ht. × 1/4" V Wd.
    1 V-Block for 3/64" to 9/32" Workpieces—3/4" Wd. × 1 1/4" Ht. × 5/16" V Wd.    		20115A410000000
     

    Any-Size V-Blocks

    Image of ProductInUse. Front orientation. V-Blocks. Any-Size V-Blocks.
    To hold and support large or small round or cylindrical workpieces, position these two-piece V-blocks to accommodate any diameter. They are a good choice when frequently changing workpiece sizes.
    Slotted Mounting Holes
    Image of Product. Front orientation. V-Blocks. Any-Size V-Blocks, Slotted Mounting Holes.
    For
    Workpiece Dia.
    Tolerance
    Mounting
    Slots
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    Squareness
    Parallel
    No.
    of
    Wd.
    Mounting Fasteners
    Included
    Material
    Machinable
    Pair
     
    Standard V-Blocks
    1"24"3"3 1/2"3"0.002"0.001"21/2"NoSteelYes3117N120000000
     
    Counterbored Mounting Holes
    Image of Product. Front orientation. Contains Annotated. V-Blocks. Any-Size V-Blocks, Counterbored Mounting Holes.
    For
    Workpiece Dia.
    Tolerance
    Mounting Holes
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    Squareness
    Parallel
    No.
    of
    For Screw
    Size
    Ctr.-to-Ctr.
    (A)
    Ctr.-to-Ctr.
    (B)
    Mounting Fasteners
    Included
    Material
    Machinable
    Pair
     
    Standard V-Blocks
    2"24"2 1/4"3 1/2"3"0.001"0.001"21/2"
    		1 1/2"2 1/2"NoSteelNo3117N110000000
     

    Milling-Machine Vise Jaws for Round Material

    Image of Product. Front orientation. Vise Jaws. Milling-Machine Vise Jaws for Round Material, Vertical Groove.
    Image of Product. Front orientation. Vise Jaws. Milling-Machine Vise Jaws for Round Material, Vertical and Horizontal Grooves.

    Vertical Groove

    Vertical and Horizontal

    Grooves

    The V-shaped recess holds round material securely for machining. Place one of these jaws on one side of your vise and use a flat jaw on the other. They have an industry standard hole pattern that fits most manufacturers' vises, including Kurt, Chick, TE-CO, Toolex, and Palmgren.
    Jaws with vertical and horizontal grooves holds 1/2" to 1 1/4" dia. workpieces vertically and 1/4" to 1/2" dia. workpieces horizontally.
    Vertical Groove—Jaws with vertical groove holds 3/4" to 1 3/4" dia. workpieces.
    Jaw
    For
    Workpiece Dia.
    Mounting
    Steel Jaw
    Wd.
    Ht.
    Thk.
    Thk. Tolerance
    Vertical
    Horizontal
    Fasteners
    Included
    Hole
    Dia.
    Hole
    Ctr.-to-Ctr.
    For Mounting
    Screw Size
    Each
    Grooved Jaw
     
    Vertical Groove
    6"1 3/4"1.26"-0.005" to 0.005"3/4" to 1 3/4"—No17/32"3 7/8"1/2"
    		2579N10000000
     
    Vertical and Horizontal Grooves
    6"1 3/4"1"-0.005" to 0.005"1/2" to 1 1/4"1/4" to 1/2"No17/32"3 7/8"1/2"
    		2579N2000000
     

    Three-Way V-Blocks

    Image of ProductInUse. Front orientation. Contains MultipleImages. V-Blocks. Three-Way V-Blocks.
    Image of Product. Front orientation. V-Blocks. Three-Way V-Blocks.
    With vees in three different sizes, these blocks can support rods and shafts in a wide range of diameters. They’re precision ground in pairs to tight tolerances, so their heights, faces, and grooves are perfectly matched. When you rest your workpiece across two blocks, they’ll keep the centerline level. Made of hardened steel, they resist wear, so they’ll stay precise even with heavy use.
    For
    Workpiece Dia.
    Tolerance
    No. of
    Vees
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Squareness
    Parallel
    Material
    Machinable
    Pair
    Sold as Matched Pair
    31/8"1 1/4"3/4"2"15/16"90°7/16"
    5/16"
    7/32"    		15/16"
    21/32"
    1/2"    		0.0002"0.0002"Hardened SteelNo7576N1210000000
    31/8"1 31/32"15/16"3"1 3/8"90°11/16"
    7/16"
    9/32"    		1 15/32"
    15/16"
    5/8"    		0.0002"0.0002"Hardened SteelNo7576N122000000
    31/8"2 11/16"1 5/16"4"2 1/16"90°15/16"
    9/16"
    3/8"    		1 31/32"
    1 3/16"
    25/32"    		0.0002"0.0002"Hardened SteelNo7576N123000000
    31/8"3 7/16"1 3/4"5"2 3/4"90°1 3/16"
    11/16"
    15/32"    		2 15/32"
    1 15/32"
    1 1/32"    		0.0002"0.0002"Hardened SteelNo7576N124000000
     

    V-Blocks for Welding

    Image of ProductInUse. Front orientation. V-Blocks. V-Blocks for Welding.
    Mount these V-blocks to grids on welding tables or plates to hold round workpieces in place. Their 5/8" dia. studs are sized to fit industry-standard mounting holes.
    Single Stud
    Image of ProductInUse. Pivoting V-Blocks Shown In Use. Front orientation. ZoomedIn view. V-Blocks. V-Blocks for Welding, Single Stud, Pivoting V-Blocks.
    Image of Product. Front orientation. Contains Annotated. V-Blocks. V-Blocks for Welding, Single Stud, Fixed V-Blocks.
    Image of Product. Front orientation. Contains Annotated. V-Blocks. V-Blocks for Welding, Single Stud, Pivoting V-Blocks.

    Pivoting V-Blocks Shown In

    Use

    Fixed V-Blocks

    Pivoting V-Blocks

    Pivoting V-Blocks—Pivoting V-blocks can hold both the outer and inner diameter of your workpiece. They can go from cradling the outside of a pipe at 60°, to lying completely flat, to gripping the inside of a pipe at a 60° angle.
    Head
    For Max. Workpiece
    Dia.
    Dia.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Stud
    Dia.
    Material
    Machinable
    Each
     
    Fixed V-Blocks
    2 1/2"1 5/8"——21/32"120°13/32"1 7/16"5/8"Black-Oxide SteelNo1403N67000000
    8"3 3/16"——1 13/32"150°19/32"3 1/16"5/8"Black-Oxide SteelNo1403N6800000
     
    Pivoting V-Blocks
    4"—2 1/8"2"1 1/8"60°27/32"1"5/8"Zinc-Plated SteelNo1365N2100000
     
    Multiple Studs
    Image of Product. Front orientation. Contains Annotated. V-Blocks. V-Blocks for Welding, Multiple Studs.
    Image of Product. Mounting Studs Installed. Bottom orientation. V-Blocks. V-Blocks for Welding, Multiple Studs.

    Mounting Studs Installed

    V-blocks with multiple studs slot into at least two grid holes, which keeps them from shifting when you move workpieces in or out. They have two rows of mounting holes, so you can position them at a 45° or 90° angle on your grid.
    For Max. Workpiece
    Dia.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Stud
    Dia.
    Material
    Machinable
    Includes
    Pair
     
    Fixed V-Blocks
    4"8 1/4"2 1/4"2"120°1/2"1 11/16"5/8"Black-Oxide SteelNoFour Mounting Studs8907N1110000000
     

    Adjustable-Angle V-Blocks

    Image of Product. Front orientation. Contains Annotated. V-Blocks. Adjustable-Angle V-Blocks.
    Use this block to hold workpieces at precise angles. Adjust the block to the desired angle, then tighten the set screw on the bottom of the block to lock it in place.
    Tolerance
    For Max. Workpiece
    Dia.
    Lg.
    Wd.
    Ht.
    Accuracy
    Range of
    Motion
    V
    Angle
    V Dp.
    V Wd.
    Squareness
    Parallel
    Material
    Machinable
    Container
    Type
    Each
     
    Standard V-Blocks
    1 3/4"1 3/4"3 3/4"2"±0.003°0° to 90°90°1 5/32"1 1/8"0.0002"0.0002"SteelNoWood Case3073N110000000
     

    Ball Inspection V-Blocks

    Image of Product. Front orientation. Contains Annotated. Inspection V-Blocks. Ball Inspection V-Blocks, Ball Support.
    Image of Product. Front orientation. Contains Annotated. Inspection V-Blocks. Ball Inspection V-Blocks, Ball Bearing Support.

    Ball Support

    Ball Bearing Support

    Use these inspection V-blocks to support rods, shafts, and other cylindrical workpieces for precise inspection or measuring tasks. The round surfaces reduce pressure on your workpiece, which helps prevent damage.
    Ball Support—Inspection V-blocks with ball supports are used for detecting lobes and out-of-round conditions. The balls don’t rotate—instead, they distribute your workpiece’s weight across eight stable points of contact. They also absorb impact, which prevents marring and surface distortion.
    Ball Bearing Support—Inspection V-blocks with ball bearings are used to measure runout, straightness, and concentricity on shafts and other round parts. The bearings spin freely, which reduces friction and allows you to rotate your workpiece smoothly and consistently.
    For
    Workplace Dia.
    Min.
    Max.
    Max. Workpiece
    Cap., lb.
    Ball
    Dia.
    Roller
    Dia.
    Lg.
    Wd.
    Ht.
    Total Indicated Runout
    (TIR) Accuracy
    Parallel
    Tolerance
    Material
    Pair
    Sold as Matched Pair
     
    Ball Support
    3/64"2 1/2"2201/2"—2 1/4"2 1/4"2"——Iron8081N1010000000
    1/4"5"1,1001"—3 1/2"3 1/2"2 1/2"——Iron8081N102000000
    1/4"15"2,0001 1/2"—4 3/4"4 3/4"3 7/8"——Iron8081N103000000
     
    Ball Bearing Support
    1/4"2 1/8"2,200—1 3/4"3 1/4"6"4"0.0002"0.0005"Iron8081N105000000
    1"2 3/4"1,100—1 5/8"2 1/2"6"4"0.0002"0.0005"Iron8081N104000000
    2 3/4"7 3/4"2,200—2 3/4"4"9"6"0.0002"0.0005"Iron8081N10600000000
     

    Magnetic V-Blocks

    Image of Product. Front orientation. Contains Annotated. V-Blocks. Magnetic V-Blocks.
    Magnetic surfaces on the bottom, back, and one V face of these blocks eliminate the need for mounting clamps and bolts. Turn the lever to switch the magnetic force on and off.
    Tolerance
    For Max. Workpiece
    Dia.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Max. Magnetic
    Pull, lbf
    Squareness
    Parallel
    Material
    Machinable
    Each
     
    Standard V-Blocks
    2"3 1/8"2 3/8"2 7/8"90°3/4"1 1/2"650.0008"0.0008"SteelYes2202A10000000
    2"4 7/8"2 3/8"2 7/8"90°3/4"1 1/2"990.001"0.001"SteelYes2202A4000000
     

    Fixturing for Parts Inspection

    Image of ProductInUse. Front orientation. Coordinate Measuring Machine Plates and Fixtures. Fixturing for Parts Inspection.
    From towers and brackets to standoffs and supports, these components are the building blocks for your custom fixturing setup. They elevate parts so you can access a variety of angles for measuring and inspecting while protecting your measuring device from hitting the inspection table. You’ll often see them used with coordinate measuring machines (CMMs). They’re not for use in machining applications.
    Magnetic V-Supports
    Image of ProductInUse. Side1 orientation. Coordinate Measuring Machine Plates and Fixtures. Fixturing for Parts Inspection, Magnetic V-Supports.
    Image of Product. Bottom orientation. Coordinate Measuring Machine Plates and Fixtures. Fixturing for Parts Inspection, Magnetic V-Supports.
    Magnetic V-supports have a notch to cradle metal cylindrical workpieces, like a spoon rest.
    Dia.
    Ht.
    V Wd.
    V Dp.
    V
    Angle
    Thread
    Lg.
    Max. Magnetic
    Pull, lbf
    Material
    Each
    1/4"-20 Threads
    1"1"1"1/4"120°1/4"16Steel1409N620000000
     
    M6 × 1 mm Threads
    13 mm25 mm13 mm3.6 mm120°6.3 mm9Steel1409N6300000
     

    Machine Table Clamps for Round Workpieces

    Image of Product. Front orientation. Fixture Clamps. Machine Table Clamps for Round Workpieces.
    Secure large, round parts for machining. Often paired with V-blocks, these clamps come with five lengths of chain that you can combine to fit a variety of workpieces. Join them with the included connecting links. These clamps also come with nonmarring pads, which snap into the chain to keep it from damaging your workpiece. One end of these clamps has a cam-locking hook to secure the chain to the table and lock it around the workpiece. The other adjusts the tension, pulling the chain tight for a firm hold. Mount these clamps into slot nuts or fixture plates with socket head cap screws (not included).
    Clamps
    Extra Chain Pads
    Overall
    Lg.
    For Max. Workpiece
    Dia.
    Max. Clamping
    Force, lbf
    Chain
    Wd.
    Roller Chain
    Trade No.
    Chain
    Material
    Clamp
    Material
    Includes
    Each
    Each
    40"14"6,00013/16"50SteelSteel1 Hook Assembly
    1 Adding-and-Connecting Link
    5 Chain Lengths (1 each in 5/8", 1 1/4", 4 3/8", 9 3/8" and 19 3/8" lengths)
    5 Chain Connecting Links
    5 Nonmarring Plastic Chain Pads
    1 Chain Tensioner    		3143N1100000003143N1300000
    64"22"12,0001 9/32"80SteelSteel1 Hook Assembly
    1 Adding-and-Connecting Link
    5 Chain Lengths (1 each in 1", 2", 7", 15" and 31" lengths)
    5 Chain Connecting Links
    5 Nonmarring Plastic Chain Pads
    1 Chain Tensioner    		3143N12000000003143N180000
     
    Roller Chain and Links
    Image of Product. Front orientation. Roller Chain and Links. Machine Table Clamps for Round Workpieces.
    Use additional ANSI chain if your workpiece is larger than the maximum diameter of the clamps. You’ll also need links to connect each new section of chain.
    Chain
    Connecting Links
    Adding Links
    Adding-and-Connecting
    Links
    Roller Chain
    Trade No.
    Pitch
    Roller
    Dia.
    Roller
    Wd.
    Working
    Load, lb.
    Choose a Length, ft.
    Per
    Ft.
    Each
    Each
    Each
    Steel
    505/8"0.400"3/8"1,620
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    ,
    9
    ,
    10
    ,
    11
    ,
    12
    ,
    13
    ,
    14
    ,
    15
    ,
    16
    ,
    17
    ,
    18
    ,
    19
    ,
    20
    ,
    50
    ,
    100
    		6261K175000006261K194000006261K244000006261K26400000
    801"0.625"5/8"4,290
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    ,
    9
    ,
    10
    ,
    11
    ,
    12
    ,
    13
    ,
    14
    ,
    15
    ,
    16
    ,
    17
    ,
    18
    ,
    19
    ,
    20
    ,
    50
    ,
    100
    		6261K177000006261K19600006261K24600006261K26600000
     

    Adjustable-Height V-Blocks

    Image of Product. Single V-Block Shown Extended. Front orientation. V-Blocks. Adjustable-Height V-Blocks.
    Image of Product. Front orientation. V-Blocks. Adjustable-Height V-Blocks.

    Single V-Block

    Shown Extended

    Support workpieces at the exact height you need for inspection, milling, or grinding. These V-blocks combine the precision of shims and blocks with the adjustability of a screw jack. They help you keep workpieces level, even when the ends are uneven. Turn a dial to move the surface of each block up or down in 0.001” increments, then lock it in place with a set screw. Made in pairs, these blocks are ground to tight tolerances for grooves that are centered and parallel with the base. They’re hardened iron for durability and dent resistance.
    For
    Workpiece Dia.
    Tolerance
    Min.
    Max.
    Max. Workpiece
    Cap., lb.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Adjustment Dial
    Graduations
    Squareness
    Parallel
    Material
    Pair
    Sold as Matched Pair
     
    Standard V-Blocks
    3/16"5"1,0001 3/4"4"3" to 3 1/2"120°3/4"2 9/16"0.001"Not Rated0.001"Iron7952N110000000
     

    V-Block Magnetic-Mount Bench Vise Jaw Liners

    Image of Product. Front orientation. Vise Jaw Liners. V-Block Magnetic-Mount Bench Vise Jaw Liners.
    Attach these V-shaped liners to vise jaws and hold large round material. Liners are made of plastic that won't mar workpieces.
    Grooved
    Overall
    Groove
    Orientation
    For Jaw
    Wd.
    Wd.
    Ht.
    Thk.
    For Workpiece
    Dia.
    Pair
    Polyurethane Plastic
    Vertical4"4"2"1 1/2"3/8" to 2"2544N1000000
    Vertical5"5"2 1/2"3 1/2"3/4" to 3 1/2"2544N2000000
     

    Precise-Positioning V-Blocks for Grid Fixtures

    Image of ProductInUse. Front orientation. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures.
    A precision bushing inside each mounting hole helps you clamp these V-blocks onto plates, columns, and other grid fixtures with pinpoint accuracy. Their through holes match industry standard 1/2"-13 threaded holes with 2" center-to-center spacing. Made from steel, these blocks are ground to tight tolerances for a centered groove and squared faces. They’re hardened to withstand dents and wear, so they’ll hold their shape over time. A black oxide coating helps prevent corrosion.
    Vertical Mount with Counterbored Mounting Holes
    Image of System. Front orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Vertical Mount with Counterbored Mounting Holes.
    Image of Product. Front orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Vertical Mount with Counterbored Mounting Holes.
    Vertical-mount V-blocks have counterbored through holes, so you can attach them to your fixture with precision shoulder screws (sold separately). The screws have a shoulder diameter tolerance of 0.0004" for a tight fit that keeps blocks from shifting.
    V-Blocks
    Precision
    Shoulder Screws
    For
    Workpiece Dia.
    Through
    Holes
    Tolerance
    Mounting
    Holes
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    No.
    of
    Thread
    Size
    Type
    Squareness
    Parallel
    No.
    of
    Screw
    Size
    Mounting Fasteners
    Included
    Material
    Machinable
    Includes
    Each
    Each
    Sold Individually
     
    Standard V-Blocks
    1/2"5"2"3 1/4"3"120°1"3"11/2"-13
    		Threaded0.001"0.001"21/2"
    		NoBlack-Oxide SteelNoBushings7549N110000000007549N101000000
    1/2"9 1/2"2"5 1/4"5 1/2"120°1 1/2"5"11/2"-13
    		Threaded0.001"0.001"41/2"
    		NoBlack-Oxide SteelNoBushings7549N12000000007549N10100000
     
    Horizontal Mount with Counterbored Mounting Holes
    Image of System. Top orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Horizontal Mount with Counterbored Mounting Holes.
    Image of Product. Front orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Horizontal Mount with Counterbored Mounting Holes.
    Horizontal-mount V-blocks have counterbored through holes, so you can attach them to your fixture with precision shoulder screws (sold separately). The screws have a shoulder diameter tolerance of 0.0004" for a tight fit that keeps blocks from shifting.
    V-Blocks
    Precision
    Shoulder Screws
    For
    Workpiece Dia.
    Through
    Holes
    Tolerance
    Mounting
    Holes
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    No.
    of
    Thread
    Size
    Type
    Squareness
    Parallel
    No.
    of
    Screw
    Size
    Mounting Fasteners
    Included
    Material
    Machinable
    Includes
    Each
    Each
    Sold Individually
     
    Standard V-Blocks
    1/2"5"1 1/2"3 1/4"2"120°7/8"3"11/2"-13
    		Threaded0.001"0.001"21/2"
    		NoBlack-Oxide SteelNoBushings7549N210000000007549N201000000
    1/2"5"1 1/2"5 1/4"2 1/2"120°1 1/2"5"11/2"-13
    		Threaded0.001"0.001"41/2"
    		NoBlack-Oxide SteelNoBushings7549N22000000007549N20100000
     
    Flange Mount with Straight Mounting Holes
    Image of System. Front orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Flange Mount with Straight Mounting Holes.
    Image of System. Bottom orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Flange Mount with Straight Mounting Holes.
    Image of Product. Front orientation. Contains Annotated. V-Blocks. Precise-Positioning V-Blocks for Grid Fixtures, Flange Mount with Straight Mounting Holes.
    Flange-mount V-blocks have both slots and holes for more mounting options when you’re building a setup. For precise positioning, use a dowel pin to mount them through straight holes on the bottom. For more flexible positioning, mount through the slots in the base with a socket head screw. Mounting fasteners are sold separately.
    V-Blocks
    Pull-Out
    Dowel Pins
    Socket-Head Screws
    For
    Workpiece Dia.
    Through
    Holes
    Tolerance
    Mounting
    Holes
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    No.
    of
    Thread
    Size
    Type
    Squareness
    Parallel
    No.
    of
    Screw
    Size
    Mounting
    Slot Wd.
    Mounting Fasteners
    Included
    Material
    Machinable
    Includes
    Each
    Each
    Pkg.
    Qty.
    Pkg.
    Sold Individually
     
    Standard V-Blocks
    5/8"3 1/8"4"3 1/8"3 1/8"90°1 1/2"2 7/8"41/2"-13
    		Threaded0.001"0.001"21/2"
    		1/2"NoBlack-Oxide SteelNoBushings7549N3100000000097175A37700000190044A16300000
     

    Granite Inspection V-Blocks

    Image of Attribute. Front orientation. Contains Annotated. Inspection V-Blocks. Granite Inspection V-Blocks.
    Made in pairs, these inspection V-blocks are precision ground to tight tolerances for straight sides, square corners, and centered grooves. Since their top surfaces are perfectly matched, they keep the centerline of your workpiece level and parallel. These blocks are often used to precisely align round workpieces for measuring or inspecting. They come with a certificate traceable to NIST confirming their accuracy. Unlike metal blocks, these black granite blocks don’t rust or warp from temperature changes. They’re also nonmagnetic, so they won’t interfere with sensitive electronic equipment.
    Inspection Grade A—Inspection Grade A blocks are used for general inspections and quality-control work. They’re slightly less precise than Grade AA blocks.
    Laboratory Grade AA—Laboratory Grade AA blocks have the tightest tolerance for the highest level of accuracy. They’re best for inspections and quality-control work in calibration labs.
    For
    Workplace Dia.
    Tolerance
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Squareness
    Parallel
    Material
    Certificate Type
    Pair
    Sold as Matched Pair
     
    Inspection Grade A
    1/2"2"3"3"3"90°1 1/4"2 1/2"0.0002"0.0002"Black GraniteAccuracy Certificate Traceable to NIST7673N123000000000
    3/4"4 1/2"6"6"6"90°2 1/2"5"0.0002"0.0002"Black GraniteAccuracy Certificate Traceable to NIST7673N12400000000
     
    Laboratory Grade AA
    1/2"2"3"3"3"90°1 1/4"2 1/2"0.0001"0.0001"Black GraniteAccuracy Certificate Traceable to NIST7673N12100000000
    3/4"4 1/2"6"6"6"90°2 1/2"5"0.0001"0.0001"Black GraniteAccuracy Certificate Traceable to NIST7673N12200000000
     

    V-Blocks for Magnetic Workholding

    Image of Product. Front orientation. V-Blocks. V-Blocks for Magnetic Workholding.
    Set these V-blocks onto a magnetic chuck or plate to lock metal workpieces in place—no fussing with clamps or bolts. Made of alternating layers of iron and stainless steel, these blocks conduct the magnetic field through their body and channel it straight into your workpiece. They’re often used to cradle rods, shafts, and irregularly shaped parts during grinding and inspecting. Each layer is entirely fused together with copper brazing, so you can machine these blocks without the layers separating. Compared to blocks made from aluminum or brass, these blocks are harder and more dent-resistant, so they hold their shape over time.
    Sold as Matched Pair—Matched pair blocks are ground together, so their heights, faces, and grooves are identical. When you rest your workpiece across the two blocks, they keep the centerline level.
    Sold
    Individually
    Sold as
    Matched Pair
    For
    Workpiece Dia.
    Tolerance
    Min.
    Max.
    Lg.
    Wd.
    Ht.
    V
    Angle
    V Dp.
    V Wd.
    Max. Magnetic
    Pull, lbf
    Squareness
    Parallel
    Material
    Machinable
    Each
    Pair
    3/8"3 1/2"3 1/2"3 1/2"1 7/8"90°1 1/4"2 1/2"850.0004"0.0002"Iron, Stainless SteelYes7419N1100000007419N12000000000

    Setup and Fixture Clamp Kits for Welding

    Image of ProductInUse. Front orientation. Fixture Kits. Setup and Fixture Clamp Kits for Welding.
    Image of Product. 66-Piece Kit. Front orientation. Fixture Kits. Setup and Fixture Clamp Kits for Welding.

    66-Piece Kit

    Hold and position workpieces on your welding fixture table. These kits include all the clamps, locating pins, and other components you need for most welding setups.
    For Hole
    Dia.
    No. of
    Pieces
    Includes
    Material
    Each
    5/8"662 Hold-Down Clamps with 6-1/2" Maximum Clamping Clearance
    4 Locking Plier Clamps (2 each with 2 1/4" and 3 1/4" Reach)
    2 Side Clamps
    2 Locating Pins
    10 Ball-Lock Screws
    8 V-Blocks
    2 Magnetic Top V-Pads
    8 Straightedge Stops
    8 Flat Rests
    4 Risers
    12 Magnetic Risers
    4 Right-Angle Brackets    		Steel8536N120000000
     
    back to top