Selco Collet Knob for 0.250” Shaft -P/N SN150, includes nut cover, and a cap.  Lot of (6).

Collet knob, plain, fits shafts with 0.250" (1/4") outer diameter.

Diameter at base of nut cover: 18.3 mm - (0.72”)

Diameter at the top: 13.9 mm - (0.55”) 

Height: 18.3 mm - (0.720”)

Collet depth: 10 mm - (0.397”)

Collet diameter : 6.34 mm - (0.250”) 

Collet housings and nuts are made of brass. 

P/N - C100 Black - Cap, black. Caps have been designed to push-fit into the collet knob body to give it added versatility.

A spanner wrench is required to tighten the knob on the shaft, easy to make one from an old flat blade screwdriver. See the last photo for the shape spanner that is required.

Quick ship via USPS Ground Advantage.  Will combine shipping, message with your list before placing your order.

Message with any questions, and thanks for looking.