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info on angle


Aug 16, 2014
I have 2 holes that should be 17/32 on one end, 5/8 on the opposite end, hole is in 1/4" plate. What angle would this be? Can I buy a reamer that will do this? I've drilled the 2 holes 1/2" to start

T Bredehoft

Active User
H-M Platinum Supporter
Dec 27, 2014
That would be an included angle of 21º. You could have a reamer made for that, or you could chuck it in a four jaw chuck and bore them with the compound set at 10 1/2º.

Edit: correct Half angle.
Last edited:
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