- Joined
- Dec 22, 2023
- Messages
- 80
I helped a friend drill some 11/16" holes in structural tubing (2X4X1/4") and the drill bit was putting out flakes instead of chips with some length to them. I pilot drilled with a 1/4" bit and used thread cutting oil while drilling. We were not feeding the bit very hard, so I am wondering if the slow feed rate was the cause of all the flakes in lieu of a more normal chip? If we fed the bit too aggressively, we would stall the press (It's an old Buffalo drill press from WWII that my dad bought after the war, and I inherited from him).