8 mm Collet Fixture

Newly developed at the request of a clockmaker, this item offers a number of new setup possibilities. 8 mm (.314-.315 body dia.) collets have a through hole, allowing long material or parts with long shafts to be held accurately. Previously it had been impossible to hold a WW-type collet on the surface of a rotary table or mill table because there was no through-hole to allow a drawbolt to be used to pull the collet into a tapered fixture. This design allows the collet to be closed from the surface by turning a knurled ring that pulls the collet down into the fixture without the need for a drawbolt. Included with the fixture is an alignment bushing that registers with the center hole of the rotary table to help set up the fixture on center. Also included are T-nuts and hold-down bolts.

P/N 1164 and P/N 1165 are identical except for the inner diameter. The two most popular sizes of WW collets are accommodated. The 8 mm holder is identified by a groove running around the outside of the body. Those who use Sherline WW collets would purchase the P/N 1164 WW holder (See P/N 1164). Users of other brand collets measuring .314 to .315" O.D. would order the P/N 1165 8 mm holder.

This is a very specialized part that makes a particular kind of setup possible. Though it won't be needed by everyone, if you have a job where this fixture would make your life easier, you now have another option available.