KiloWhiskey1
Well Known Member
I?m trying to enlarge a 3/16? hole in a solid stainless tail spring and I?ve broken two drill bits. So far I?ve tried to use a slightly larger diameter bit to step the hole up gradually, but I broke a titanium and a cobalt bit. The tail spring and it?s bulkhead bracket are already riveted on the air frame, so I can?t use a drill press or mill. I need to get the hole enlarged to .2450? (ish) so that I can use a reamer to finish the 1/4? hole.
Any tricks for using a hand drill to enlarge a hole in thick and round stainless? Is step drilling with gradually larger bits a bad idea? Should I just go directly to the final size?
I have some M35 Cobalt bits on order that are supposed to be good for stainless. Any other tool suggestions would be appreciated as well.
Thanks,
Keith
Any tricks for using a hand drill to enlarge a hole in thick and round stainless? Is step drilling with gradually larger bits a bad idea? Should I just go directly to the final size?
I have some M35 Cobalt bits on order that are supposed to be good for stainless. Any other tool suggestions would be appreciated as well.
Thanks,
Keith