- Joined
- May 9, 2014
- Messages
- 415
On the positive side it's a good sign of a really nicely sharpened drill bit.
Not to mention
On the positive side it's a good sign of a really nicely sharpened drill bit.
ThanksNot to mentiongoodperfect feed and speed...
it will easily explode a 2" diameter twist drill,
This is a machine built in the 50's or earlier, safety was not a major concern at the time.Yikes. I thought the chip/snakes looks dangerous but thinking about a tool failure like that is down right scary.
Thanks for the pics
Did I mention that I hate chips in every possible way?
Drill chips are easy to handle just annoying to clean up.
The chips generated in a lathe turning/boring operation are a different animal especially if a blind bore. These can break tools and damage parts if they will not break, this is one of the reasons why there are so many different chip breaking designs on insert tooling.
1950 era machines do not peck drill, in the 60's tape machines began to appear so I assume that this sort of control began then, I would not know this because I am only 60 years old and it was well before my time.