The IT-9750-C comes with key & adapter. The adapter is tapered on one end to fit the chuck and has 1/4-28 threads on the other end to fit the tool. This chuck fits the IT-9750, IT-9750EX, IT-9751, IT-9753 and IT-9754. Key is model IT-9750-B. Chuck only is IT-9750-A. Adapter is IT-9750-D.
IT-9750-C 1/8″ Drill Chuck, Key and Adapter
$27.04
Fits any 1/4-28 threaded spindle with the use of our adapter from tapered shaft (inside chuck) to 1/4-28 thread.