Round Collets | McMaster-Carr

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350 Products

Fabricating and Machining

R8 Collets

Use these collets to securely hold round-shank tool bits in the R8 spindle of a milling machine.

5C Collets

These collets tightly grip workpieces when installed into a 5C collet chuck or holder. They provide a stronger hold on small workpieces than a standard lathe chuck. Choose from collets that can grip round-, hexagon-, or square-shaped workpieces.

ER-32 Collets

Install into an ER-32 collet chuck or holder to tightly grip round-shank tool bits in milling machines.

ER-16 Collets

Install into an ER-16 collet chuck or holder to tightly grip round-shank tool bits in milling machines.

ER-20 Collets

Install into an ER-20 collet chuck or holder to tightly grip round-shank tool bits in milling machines.

ER-25 Collets

Use these collets in milling machines that have an ER-25 collet chuck. With a round face and adjustable body, they compress to grip round-shank drill bits, end mills, reamers, and taps.

16C Collets

Insert into a 16C collet chuck or holder to tightly grip round workpieces. They provide a stronger hold on small workpieces than a standard lathe chuck.

ER-11 Collets

Install into an ER-11 collet chuck or holder to tightly grip round-shank tool bits in milling machines.

100-TG Collets

Install into a 100-TG collet chuck or holder to tightly grip round-shank tool bits in milling machines.

3J Collets

When installed into a 3J collet chuck or holder, these collets securely grip round workpieces. They provide a stronger hold on small workpieces than a standard lathe chuck.

R8 Collet Sets

Use these collets to securely hold round-shank tool bits in the R8 spindle of a milling machine.

5C Collet Sets

These collets tightly grip workpieces when installed into a 5C collet chuck or holder. They provide a stronger hold on small workpieces than a standard lathe chuck.

Small-Hole Drill Chuck Adapters

Drill extremely small holes with a drill press using these adapters. The shank fits into a collet or adjustable drill chuck, and the other end securely holds a wire gauge drill bit.

Collets for Air-Powered Bit and Bur Grinders

Collets for Dremel Bit and Bur Grinders

Pair with Dremel rotary tools to securely grip bits and burs.

Collets for Electric Bit and Bur Grinders

Expanding-End Lathe Mandrel Sets

The mandrels in these sets have an expanding screw that widens the end of the mandrel for a tight hold on the inside of a workpiece.

Expanding-End Lathe Mandrels

An expanding screw widens the end of the mandrel for a tight hold on the inside of a workpiece.