McMaster-Carr logo
    Filter by
    Collet Type
    System of Measurement
    Power Source
    Mounting Position
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Squareness Tolerance
    Body Width
    Overall Width
    Pipe Size
    Industrial Info Snippet
    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)
    28 Products

    Indexing Collet Fixtures

    Image of Product. Front orientation. Contains Annotated. Collet Fixtures. Indexing Collet Fixtures, 1° Index Increments.
    Image of Product. Front orientation. Contains Annotated. Collet Fixtures. Indexing Collet Fixtures, 15° Index Increments.

    1° Index Increments

    15° Index Increments

    Used with a 5C collet (sold separately), these fixtures rotate round, hex, or square workpieces up to 1 1/8" diameter in precise increments. Also known as spindexers or punch formers, they are commonly used to drill holes into cylindrical parts, grind punches into precision shapes, and sharpen drill bits and end mills. To ensure accurate rotation, spindles are precision ground. Mount fixtures to a machine table for horizontal orientation or an angle plate for vertical. A through-hole accommodates long workpieces.
    1° Index Increments—Fixtures with 1° index increments have an indexing plate with 36 holes for rotating in 10° steps and 10 additional holes for 1° refinements.
    15° Index Increments—Fixtures with 15° index increments have 24 locking positions.
    Overall
    Base
    Tolerance
    Index
    Increments
    For Collet
    Type
    Through-Hole
    Dia.
    Ctr.
    Ht.
    Lg.
    Ht.
    Lg.
    Wd.
    Body
    Wd.
    Parallel
    Squareness
    Material
    Each
    1°5C1 1/4"2 3/4"9 11/16"5 1/4"3 7/8"4 3/8"5"0.0002"0.0002"Steel0000000000000000
    15°5C1 1/16"3 1/4"4 1/2"8 1/2"4 1/2"3 1/2"4"0.001"0.001"Steel0000000000000

    Air-Operated Collet Fixtures

    Image of Product. Front orientation. Collet Fixtures. Air-Operated Collet Fixtures, Sold Individually.
    Image of Product. Front orientation. Collet Fixtures. Air-Operated Collet Fixtures, Sold as Kits.

    Sold Individually

    Sold as Kits

    Control clamping action with air. Use 5C collets (sold separately) to grip and release parts on milling machines and drill presses.
    Mounting
    Holes
    Air Inlet
    Sold As
    For Collet
    Type
    For Max. Workpiece
    Dia.
    Dia.
    Ht.
    Max. Clamping
    Pressure, psi
    Max. Air Pressure,
    psi
    Material
    No.
    of
    Dia.
    Mounting
    Position
    No. of
    Air Ports
    Connection
    Port
    Pipe
    Size
    Thread
    Type
    Gender
    Power
    Source
    Includes
    Each
    Individual5C1 1/16"5 1/2"3 1/4"1,125150Aluminum43/8"Vertical2Hose1/4
    		NPS
    		MaleAir—00000000000000
    Kit5C1 1/16"5 1/2"3 1/4"1,125150Aluminum43/8"Vertical2Hose1/4
    		NPS
    		MaleAirAir-Operated Fixture, Four-Way Foot-Operated Air Valve, Three 6-ft. Long Air Hoses0000000000000

    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
    5/16" to 6 5/16" (8 to 160 mm)1 7/8" to 5 29/32" (48 to 150 mm)1 25/32" (45 mm)6 11/16" (170 mm)1 9/16" (40 mm)8 21/32" (220 mm)11/16" (18 mm)Steel41/2" (13 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench0000000000000000
    7/16" to 7 7/8" (11 to 200 mm)2 7/16" to 7 1/2" (62 to 190 mm)2 3/8" (60 mm)8 1/4" (210 mm)1 25/32" (45 mm)10 5/8" (270 mm)25/32" (20 mm)Steel41/2" (13 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench000000000000000
    15/32" to 9 27/32" (12 to 250 mm)2 27/32" to 9 7/16" (72 to 240 mm)3 5/32" (80 mm)10 1/32" (255 mm)2 3/32" (53 mm)12 13/32" (315 mm)25/32" (20 mm)Steel45/8" (16 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench000000000000000
    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 Wrench000000000000000
    4 Reversible Jaws
    Image of Product. Front orientation. Jaw Fixtures. Stationary Clamping Jaw Fixtures, 4 Jaws.
    Fixtures with four jaws have more holding power than those with three jaws, so they’re often used on square or rectangular workpieces.
    For
    Workpiece
    Base
    Mounting
    Slots
    OD
    ID
    Ctr. Through-Hole
    Dia.
    Lg.
    Wd.
    Ht.
    Lg.
    Wd.
    Ht.
    Material
    No.
    of
    Wd.
    Includes
    Each
    5/32" to 5 1/32" (4 to 128 mm)2 5/32" to 5 1/32" (55 to 128 mm)1 19/32" (40 mm)6 1/2" (165 mm)6 1/2" (165 mm)1 17/32" (39 mm)8 15/32" (215 mm)6 1/2" (165 mm)11/16" (18 mm)Steel211/16" (18 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench0000000000000000
    3/16" to 6 3/8" (5 to 162 mm)2 7/16" to 6 3/8" (62 to 162 mm)2 5/32" (55 mm)7 7/8" (200 mm)7 7/8" (200 mm)1 25/32" (45 mm)9 27/32" (250 mm)7 7/8" (200 mm)25/32" (20 mm)Steel211/16" (18 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench000000000000000
    1/4" to 7 7/8" (6 to 200 mm)2 27/32" to 7 7/8" (72 to 200 mm)2 3/4" (70 mm)9 27/32" (250 mm)9 27/32" (250 mm)1 31/32" (50 mm)12 7/32" (310 mm)9 27/32" (250 mm)7/8" (22 mm)Steel211/16" (18 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench000000000000000
    13/32" to 10 7/16" (10 to 265 mm)3 9/16" to 10 7/16" (90 to 265 mm)3 15/16" (100 mm)12 7/32" (310 mm)12 7/32" (310 mm)2 3/8" (60 mm)14 31/32" (380 mm)12 7/32" (310 mm)1" (25 mm)Steel27/8" (22 mm)One Set of Hardened Reversible Jaws, One Chuck Wrench000000000000000

    Indexing Jaw-Chuck Fixtures

    More flexible than indexing collet fixtures for workholding—these fixtures hold a wide range of part sizes without swapping out collets. Also known as spindexers, they’re often used to drill hole patterns, shape punches, and sharpen cutting tools. With three jaws that move together, the chuck auto-centers parts and even grips workpieces that are out-of-round or have rough surfaces. Ground to tight tolerances, the base sits flat when mounted to machine tables in either a horizontal or vertical position, preventing misalignment. With a hole through their center, they have no trouble holding long parts too. The chuck comes off, so you can also use them as rotary tables.
    3 Reversible Jaws
    Image of Product. Front orientation. Jaw Fixtures. Indexing Jaw-Chuck Fixtures.
    Fixtures with three jaws are best for gripping round workpieces.
    Tailstocks—Support long workpieces to improve stability during indexing and machining.
    Jaw Fixtures
    Tailstocks
    For
    Workpiece
    Overall
    Base
    Tolerance
    Mounting
    Slots
    OD
    ID
    Index Increments
    Lathe Chuck
    Dia.
    Ctr. Through-Hole
    Dia.
    Ctr.
    Ht.
    Lg.
    Wd.
    Ht.
    Lg.
    Wd.
    Ht.
    Parallel
    Squareness
    Material
    No.
    of
    Wd.
    Includes
    Each
    Each
    13/32" to 6 5/32" (10 to 155 mm)5/32" to 1 21/32" (4 to 42 mm)15°, 30°, 45°, 60°, 90°, 120°, 180°6"1 3/4"5"9 7/8"8 3/4"10 7/16"8 5/8"5 7/8"9 1/4"0.0002"0.0002"Steel55/8"One Chuck Wrench000000000000000000000000000000
    13/32" to 7 3/32" (10 to 180 mm)5/32" to 2 7/16" (4 to 62 mm)15°, 30°, 45°, 60°, 90°, 120°, 180°8"2 1/2"6 1/4"12 1/4"9 9/16"11 5/8"8 7/8"6 1/4"11 1/4"0.0002"0.0002"Steel55/8"One Chuck Wrench0000000000000000000000000000

    Tailstocks

    Image of Product. Front orientation. Contains Annotated. Tailstocks.
    Stabilize long workpieces for precise machining. These tailstocks hold your workpiece by its end to keep it straight and aligned. Adjust the center height to use them with a variety of rotary tables, indexing heads, and other fixture setups. Made of cast iron, they resist vibration and wear, so they’ll hold up to heavy duty machining tasks.
    Base
    Mounting
    Slot
    Ctr. Ht.
    Lg.
    Wd.
    Ht.
    Overall
    Ht.
    No.
    of
    Wd.
    Mounting Fasteners
    Included
    Material
    Includes
    Each
    3 1/4" to 4 1/4"5 3/8"3 3/4"4 1/8"4 1/4"25/8"NoCast IronStandard-Point Dead Center00000000000000
    4 1/2" to 5 3/4"6 1/8"4 3/8"5 7/8"5 3/4"25/8"NoCast IronStandard-Point Dead Center0000000000000
    5 1/4" to 7 3/4"7 1/4"5 1/2"8 1/2"8"25/8"NoCast IronStandard-Point Dead Center0000000000000
    7 1/2" to 10 1/4"7 7/8"5 3/4"10"10 1/4"25/8"NoCast IronStandard-Point Dead Center0000000000000

    High-Density Air/Hydraulic-Operated Collet Fixtures

    Image of ProductInUse. Four Fixtures (Each Sold Separately). Front orientation. Collet Fixtures. High-Density Air/Hydraulic-Operated Collet Fixtures.

    Four Fixtures (Each Sold Separately)

    Image of Product. Front orientation. Collet Fixtures. High-Density Air/Hydraulic-Operated Collet Fixtures, Pull Back.
    Image of Product. Front orientation. Collet Fixtures. High-Density Air/Hydraulic-Operated Collet Fixtures, Pull Back—Flange Mount.

    Pull Back

    Pull Back—Flange Mount

    Image of Product. Fixed Length. Front orientation. Collet Fixtures. High-Density Air/Hydraulic-Operated Collet Fixtures, Fixed Length.
    Image of Product. Front orientation. Collet Fixtures. High-Density Air/Hydraulic-Operated Collet Fixtures, Fixed Length—Flange Mount.

    Fixed Length

    Fixed Length—Flange Mount

    Push a button to clamp or release multiple workpieces on your milling machine or drill press. To create a high-density setup, mount these fixtures and join them together using two connector bushings (sold separately) for each fixture you want to add. These fixtures have a through hole for clamping long workpieces.
    Air or hydraulic pressure opens and closes the collets (not included). A good choice for heavy machining, these fixtures provide a tighter hold than you can achieve with manual power. You can operate multiple fixtures with a single valve (not included) and two hoses—one for supply and one for return. All are double acting, so they need air or hydraulic pressure both to open and close. This means that the workpiece stays locked in place even if you lose pressure. Clamping force depends on the air or hydraulic pressure of your system.
    Top-Locking Screw—Fixtures with a top-locking screw allow for direct access to make adjustments without disassembling your setup.
    Pull Back—Pull-back fixtures have tapered walls that press all sides of the collet evenly to center the workpiece—like how a mechanical pencil grips lead. They’re less precise than fixed-length fixtures because the workpiece may shift slightly during clamping.
    Fixed Length—Fixed-length fixtures, also known as dead-length fixtures, keep the collet stationary while they clamp onto a workpiece. Use them to precisely machine holes, slots, and contours exactly where you need them. Since these fixtures position workpieces consistently, they’re often used for high-volume production runs. You can also rotate them on an indexer or rotary table without losing your reference point.
    Collet Fixtures
    Connectors
    Max.
    Pressure, psi
    Max. Clamping
    Force, psi
    Mounting
    Holes
    Mounting
    Slots
    Port
    For Collet
    Type
    For No.
    of Collets
    For Max. Workpiece
    Dia.
    Through-Hole
    Dia.
    Lg.
    Wd.
    Ht.
    Air
    Hydraulic
    Air-Powered
    Hydraulic-Powered
    Material
    No.
    of
    Thread
    Size
    Dia.
    Lg.
    Wd.
    No. of
    Ports
    Pipe
    Size
    Thread
    Type
    Thread
    Gender
    Includes
    Each
    Each
    Collet Fixtures with Locking Screw
     
    Pull Back
    5C11 1/16"1 3/16"4"4"3 1/2"150—1,125—Aluminum43/8"-24
    		———21/4
    		NPT
    		FemaleCollet Wrench000000000000000000000000000
     
    Pull Back—Flange Mount
    5C11 1/16"1 3/16"6 1/2"4"3 1/2"150—1,125—Aluminum43/8"-24
    		—1"1/2"21/4
    		NPT
    		FemaleCollet Wrench0000000000000000000000000
     
    Collet Fixtures with Top-Locking Screw
     
    Fixed Length
    1C11/4"5/16"1 3/4"1 3/4"1 7/16"250750180545Aluminum410-24
    		———21/8
    		NPT
    		FemaleCollet Wrench0000000000000000000000000
    3C11/2"5/8"2 1/2"2 1/2"2 3/4"250750300900Aluminum41/4"-20
    		———21/8
    		NPT
    		FemaleCollet Wrench0000000000000000000000000
    5C31 1/16"1 3/16"8"3 1/2"3 5/16"—5,000—5,500Aluminum45/16"-18
    		———27/16UNF
    		FemaleCollet Wrench000000000000000000000000000
    16C11 5/8"1 7/8"4"4"4 1/4"2502,0001,45011,600Aluminum43/8"-16
    		———21/4
    		NPT
    		FemaleCollet Wrench0000000000000000000000000
     
    Fixed Length—Flange Mount
    3J11 3/4"1 15/16"4"4"3 3/4"—5,000—9,500Steel4—3/8"——27/16UNF
    		FemaleCollet Wrench000000000000000000000000000
     
    back to top