5c Chuck Stop Block 5c Chuck Fixed Rod Screw with 5c Collet! 5C Adjustable Thread Chuck Stop for Machined Turning. 5C adjustable thread chuck stop for turning spring steel. Harden, durable and long lasting. 5C Chuck Fixed Long Bar 5C Chuck Adjustable Stop for 5C Chuck with Lever Thread Works with any 5C Collet Available in Threaded Rod Applications - Full Hex Milled for Torx Wrench or Open End Benefits - Easily and Accurately Positions Parts Range of 7/8" or Less - This 5C Chuck Stop Fits Minimum 1-1/1" Inner Diameter: CM)Fit - For 1-3 /64"-2 /64"-4 Threads Any 5CID Thread Collet Material - Welcome, my friend! Dear friend,choose we are your wise choice,welcome you,my friend!