These collets can be easily machined and are especially designed to hold larger and odd shaped parts. A 1/8" (3.17mm) dowel pin is included with the collet to close on while the face is being machined. The face is drilled 3/16" deep or less and then bored to exact size to make what is, in effect, a custom chuck for parts too big to be held in regular WW collets. They are used with WW collet adapter and drawbar (P/N 1161).
NOTE: Collet pot chucks are designed to hold material only on the face end, not through the collet. Maximum gripping depth is 3/16" (4.8mm).
Sherline also makes a WW collet with a 1" blank that is deeper than the pot chucks and is not split. It can also be modified to hold tools or parts for special tasks. See P/N 2083.
Replacement Parts -
31070 1/8" x 3/8" Gear Dowel Pin
Download PDF Instructions