Quote Originally Posted by Duman View Post
I've never had a hole saw give me such a clean cut... you've got talent.
New hole saws off Amazon, slowest speed on my 20 year old Delta drill press at 620 rpm.
3 clamps holding everything steady.
Very light pressure - touching the material and lifting every 4-5 seconds.
Also built up wood scrap inside the can to back up the metal for the side holes.
The back hole I had to clamp everything to the drill press table and did not back up with wood - I figured the short width in the back gave good support.
The spindle and chuck did not like staying together at first. I lightly sanded the spindle and tapped the chuck back on with a rubber mallet.
Just a few curses and everything finally came together.