Quote:
Originally Posted by Herodotus
That is highly possible. The set is labeled as "Titanium" it doesn't say if it is fully titanium or just coated. Either way, we weren't doing anything particularly tough to the bit, so it's just a bit odd that it would get such a nice little bend in it. At the end of the last piece being drilled the student was pushing a little bit hard and the bit got caught in the piece at the end, spinning the piece into the jig we had set up. But I had that happen to myself once when I was drilling basically the exact same part and the drill had been fine before.
The cutting point is still perfectly sharp though  |
Yeah it's not titanium. It's called Titanium Nitride coating. Helps with lubricity. Actually doesn't work all that well in Aluminum, from everything I've read (it doesn't resist chip welding in aluminum real well, apparently).
Any drill you might commonly come across will be made out of either High Speed Steel, Cobalt, or Carbide.