drill chuck key

[chucketn]

Anyone have a Jacobs 1/2" chuck key, Jacobs # K32, that they can measure the pin and pinion on? My buddy has an impact drill that is missing the key. The key from my HF Tailstock chuck fits it. The pin is .235, and the large diameter of the pinion is .692. HF has a universal 4 way key and a half in chuck with key that might work.

Chuck

 

[chucketn]

The drill in question is a Milwaukie hammer drill with 3/8 keyed chuck. Anybody ever replace the chuck on one? Is it threaded?

Chuck

 

[Geartooth]

Here is the Graingers catalog page for chuck keys. They have the pin diameters listed in the descriptions.

http://www.grainger.com/search?nls=1&searchQuery=chuck+key

Greg G.
Osseo, MN