Need Square Holes for Carriage Bolts
1/8" plate steel. Drilling the holes is easy, but I am not looking forward to using a small file to get them square.
Anybody got a miracle, super, easy-peasy way to do this?
EDIT: I have a corded Dremel -- will this work? Square holes will be about 5/16 on a side. What kind of bit would I use?