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    21 Products

    Lathe Chucks

    Mount these chucks to a lathe's spindle to hold round workpieces. Also known as scroll chucks, they are self centering—all jaws move in unison, centering the workpiece as they close. Made of forged steel, these chucks are strong and wear resistant, so they maintain their shape even with continuous use. They’re often used for precision machining. You can run them at higher speeds than cast iron chucks, and they’ll last longer. Use the included lathe chuck wrench to open and close the jaws.
    Reversible Two-Piece Tongue-and-Groove Jaw Chucks
    Image of Product. Front orientation. Lathe Chucks. Lathe Chucks, , Tongue and Groove Jaw, Self-Centering, 3 Jaws.

    3 Jaws

    Chucks with reversible jaws come with one set of jaws that can be installed for either an inside or outside grip. These jaws are two-piece and tongue-and-groove, so they’re great for when you need to regularly switch top jaws or use soft jaws for custom clamping. This setup offers the best mix of flexibility and repeatable accuracy.
    Lathe Chucks
    Replacement
    Reversible Jaw Sets
    For
    Workpiece
    Dia.
    OD
    ID
    Ctr. Through-Hole
    Dia.
    Total Indicated Runout
    (TIR) Accuracy
    Max. Rotation
    Speed, rpm
    Material
    Includes
    Each
    Each
    3 Jaws
    12"0.39" to 12.4"2.56" to 10.43"4.05"0.0006"2,800SteelOne Set of Reversible Top Jaws, One Set of Jaw Mounts, Self-Ejecting Lathe Chuck Wrench, Hex Key, Mounting Bolts, Adjustment Screws9456N120000000009456N250000000
     
    Accessories for Lathe Chucks

    Powered Lathe Chucks

    Image of System. Side1 orientation. CrossSection view. Contains Annotated. Lathe Chucks. Powered Lathe Chucks.
    Precise and powerful clamping for high speed, heavy duty CNC turning. These chucks connect to your CNC lathe’s hydraulic system to open and close the jaws—no more cranking with a chuck jaw wrench. To mount the chucks to your lathe, machine the included blank draw nut to match the thread of your drawtube. You can use these as drop-in replacements for major machine brands such as Okuma, Mazak, Haas, Hyundai WIA, and Doosan.
    These chucks are self-centering, so all the jaws move in unison to center the workpiece as they close. They come with a set of machinable jaws that you can bore to fit the curves and edges of your unique workpiece for a tighter hold and more stability than standard hardened jaws. For additional sizes and materials, see our full offering of machinable jaws.
    Self-Centering Two-Piece Serrated Jaw Chucks
    Image of Product. Front orientation. Lathe Chucks. Powered Lathe Chucks, , Self-Centering.
    Dia.
    For Workpiece
    OD
    Ctr. Through-Hole
    Dia.
    Total Indicated Runout
    (TIR) Accuracy
    Max. Rotation
    Speed, rpm
    Serration
    Size
    Material
    Includes
    Each
    3 Jaws
    12"1.33" to 11.96"3.58"0.0008"3,3001.5 mm × 60°SteelOne Set of Master Jaws with Machinable Top Jaws, Self-Ejecting Lathe Chuck Wrench, Machinable Draw Nut, Hex Key, Mounting Bolts9606N14000000000
    12"1.77" to 12.4"4.05"0.0008"3,0001.5 mm × 60°SteelOne Set of Master Jaws with Machinable Top Jaws, Self-Ejecting Lathe Chuck Wrench, Machinable Draw Nut, Hex Key, Mounting Bolts9606N1700000000
     
    Accessories for Lathe Chucks
    Jaw Boring/Self-Centering Two-Piece Serrated Jaw Chucks
    Image of Product. Front orientation. Contains Annotated. Lathe Chucks. Powered Lathe Chucks, Built-In Adjustment Ring, Self-Centering, .
    Image of Attribute. Built-In Adjustment Ring. Front orientation. Contains Annotated. Built-In Adjustment Ring. Powered Lathe Chucks.

    Built-In Adjustment Ring

    Jaw-boring chucks reduce the time it takes to machine jaws. Instead of a separate boring ring or machined slugs that you have to position and reposition, they have a built-in adjustment ring. All you need is an L-key to fine-tune alignment once before machining. The ring moves in increments as small as 0.004”, so the jaws are machined for a tight fit to your workpiece.
    Dia.
    For Workpiece
    OD
    Ctr. Through-Hole
    Dia.
    Total Indicated Runout
    (TIR) Accuracy
    Max. Rotation
    Speed, rpm
    Serration
    Size
    Material
    Includes
    Each
    3 Jaws
    12"1.35" to 11.95"3.58"0.0002"3,3001.5 mm × 60°SteelOne Set of Master Jaws with Machinable Top Jaws, Self-Ejecting Lathe Chuck Wrench, Machinable Draw Nut, Hex Key, Mounting Bolts, T-Nuts9606N35000000000
    12"2.14" to 12.38"4.05"0.0002"3,0001.5 mm × 60°SteelOne Set of Master Jaws with Machinable Top Jaws, Self-Ejecting Lathe Chuck Wrench, Machinable Draw Nut, Hex Key, Mounting Bolts, T-Nuts9606N3600000000
     
    Accessories for Lathe Chucks

    Stationary Clamping Jaw Fixtures

    Mount these fixtures to a milling machine, drill press, or other flat surface and use the jaws to grip workpieces. Their low-profile design maximizes tool clearance, which helps you machine efficiently. The jaws are precision ground to tight tolerances for repeatable centering that’s accurate within 0.02 mm. These fixtures are self-centering—they use scroll actuation, which means that all jaws move in unison to center the workpiece as they close.
    Each fixture comes with reversible jaws, which you can install for either an inside or outside grip. Use the included wrench to open or close the jaws.
    3 Reversible Jaws
    Image of Product. Front orientation. Jaw Fixtures. Stationary Clamping Jaw Fixtures, 3 Jaws.
    Fixtures with three jaws are best for gripping round workpieces.
    For
    Workpiece
    Base
    Mounting
    Slots
    OD
    ID
    Ctr. Through-Hole
    Dia.
    Dia.
    Ht.
    Dia.
    Ht.
    Material
    No.
    of
    Wd.
    Includes
    Each
    19/32" to 11 13/16" (15 to 300 mm)3 3/8" to 11 13/32" (86 to 290 mm)4 1/8" (105 mm)12" (305 mm)2 9/32" (58 mm)14 9/16" (370 mm)7/8" (22 mm)Steel411/16" (18 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench7613N14000000000

    Machinable Lathe Chuck Top Jaws

    Machine these jaws to fit the curves and edges of your unique workpiece for a tighter hold and more stability than standard hardened jaws. For the tightest fit to your workpiece, use boring rings to hold your jaws in place while machining.
    Full-Grip Jaws
    Image of Product. Front orientation. Lathe Chuck Jaws. Machinable Lathe Chuck Top Jaws, Full-Grip Jaws.
    Image of Attribute. Front orientation. Contains Annotated, Inset. Machinable Lathe Chuck Top Jaws, Full-Grip Jaws, Serrated Jaws.
    Image of Attribute. Front orientation. Contains Annotated. Machinable Lathe Chuck Top Jaws, Full-Grip Jaws, Tongue and Groove Jaws.

    Serrated Jaws

    Tongue and Groove Jaws

    Full-grip jaws surround the workpiece for maximum grip from every angle, ensuring an exact fit on thin or intricate parts. This increased contact area reduces your risk of deforming parts with thin walls. They’re also known as pie jaws.
    Serrated Jaws—Serrated jaws work with most power lathe chucks from Kitagawa, LMC, Samchully, Toolmex, Bison, Seoam, and Auto Strong. Attach to your chuck with jaw nuts (not included).
    Tongue and Groove Jaws— Tongue and groove jaws work with most manual lathe chucks from Bison, Toolmex, Buck, Samchully, Rohm, and Huron.
    6061 Aluminum—6061 aluminum jaws are lighter in weight than steel jaws, so they can be turned at higher speeds with less wear on your machine.
    6061 Aluminum
    For Lathe
    Chuck Dia.
    Ht.
    Dia.
    Slot
    Wd.
    No. of
    Pieces
    Serration
    Size
    For Screw
    Size
    Mounting Hole
    Ctr.-to-Ctr.
    Wt.,
    lb.
    Each
    Serrated Jaws
    12"2"12"0.827"31.5 mm × 60°M16
    1.181"23.43235N1470000000
    12"3"12"0.827"31.5 mm × 60°M16
    1.181"34.23235N148000000
    12"4"12"0.827"31.5 mm × 60°M16
    1.181"45.33235N149000000
     
    Tongue and Groove Jaws
    12"2"12"0.500"3M12
    2.5"23.43235N247000000
    12"4"12"0.500"3M12
    2.5"45.33235N248000000
     
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