Enlarging bulkhead hole

[Doug]

Originally Posted by Evilweevil

Just go to princess auto they drill fine and go with the plywood jig like mono us said go slow and don't use a lot of pressure it will drill fine

Thanks. I was thinking, since getting the right bit, instead of drilling new hole in the back I may just try widen the smaller ones, with the wooden jig idea.



BUT


what if bottom is tempered.......