workinforwood
Member
I need to buy some center drills, but there are so many options that I can't figure out which ones to get. I see ones that drill and countersink both one sided and two sided. I see ones that do not countersink, just like a regular drill bit but very short of course. And I see ones that almost look like a super short drill bit but have a hole that goes all the way through it<hole through cutter, not all the way up through the shank>. And then..what type of metal is going to hold up the best for drilling metals?