RETENTION KNOB SOCKET FITS ALL 40 TAPER (CAT40, BT40) PULL STUD.

* Square drive 1/2" x 1” flat, this will fit all of your 40 taper retention knobs.

*You can also open it with a wrench.

* Made of high-grade tool steel S7 and heat treating (harden 60 Rc).

*100% Satisfaction Guaranteed.

* One year warranty, free return shipping cost.

We also make custom tools and parts.

Contact us for the special wholesale/ custom prices.

Sunnyvale CNC, INC

3737 Yale Way

Fremont, CA 94538 

website: sunnyvalecnc.com

Tel (408) 480 2453       (408) 702 0294

Thank you for looking!