You can remove your 3/8 chuck and buy a 1/2 that fits the same
thread pattern. A good hardware store should have ii.

You could also buy the same 1/2 chuck and install it on a bolt and
saw off the head to chuck in your 3/8. The 3/8 spindle should be
a 3/8-24 thread. The 1/2 spindle should be a 1/2-20. They also
make 1/2 chuck with a 3/8-24 thread.

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______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)




"Jay Pique" wrote in message
ups.com...
Is there any sort of 1/2" chuck that you can chuck into a 3/8"
chuck
so you can use half inch drill bits with your 3/8" drill?

JP
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chuckling