Replies

1. 
   dstevick | Sep 23, 2022 01:33pm | #1

   I searched on "drill chuck for impact driver" and found several that might work on Amazon. They have the 1/4 in. hex impact shank and will extend the total length of your bit. Depending on the bit diameter you are trying to use you might be able to find one with a 1/4 in. shank and use it without an adapter. I found 1/2 in. and 3/8 in bits with 1/4 in shanks on Amazon.

1. 
   tnova | Sep 23, 2022 02:50pm | #2

   thanks dstevick. I had looked at those. Unfortunately the only ones I saw that would take a 3/8 shank are too bulky for the space. My bad really--poor planning. I'll check to see if I can find a narrow shank bit.

2. 
   gulfstar | Sep 23, 2022 03:20pm | #3

   Do you have a bench grinder ?

1. 
   tnova | Sep 23, 2022 08:00pm | #4

   yes

1. 
   gulfstar | Sep 23, 2022 08:38pm | #5

   Then you can either grind the shank down or cut the drill bit back and sharpen it so it can go in an adapter and be short enough to get in the cramped space.

   Could also buy a drill with a 1/4 inch shank https://www.amazon.ca/JEFE-HEX-Titanium-Aluminum-Plastics/dp/B091B1Y4C5/ref=asc_df_B091B1Y4C5/?tag=googleshopc0c-20&linkCode=df0&hvadid=560376348675&hvpos=&hvnetw=g&hvrand=7280927291100219590&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9000565&hvtargid=pla-1376248832803&psc=1

1. 
   tnova | Sep 24, 2022 10:54am | #6

   Thank you gulfstar. The bit called for is 13/32 (for a cross dowel) and the only thing close that I see with a 1/4 shank is 3/8. But I may be able to make that work. If not I'll try grinding it down. Thanks again for your advice.

3. 
   gulfstar | Sep 24, 2022 11:34am | #7

   When I need an odd size hole I grind a spade drill down to final size. In this case that would be a 7/16 drill. I grind each side the same number of time and do test holes until satisfied with the size and quality.

   
4. 
   user-6445466 | Sep 24, 2022 03:40pm | #8

   Not sure what your hole tolerance is but found on Amazon a 10 mm drill bit with a 1/4 inch hex shaft

1. 
   tnova | Sep 24, 2022 06:08pm | #9

   Thanks. Might be a tad small, but worth the try.