Someone once told me just because your drill can turn at 15,000 rpm doesn't mean it should.
Cutting oil doesn’t cool like the water does.
Heat is your enemy.
I recall this from high school shop class commercial drilling operations often use water jets for cooling.
The titanium nitrate coating only helps if you have a good steel under it.
You can coat carbon steel
Pardon my French but your titanium coated Drill bits may be titanium coated pieces of....
Electroplated pig iron doesn't have improved strength when the coating is microns thick.
Good bits, right speed for material (there are charts on most good presses), cooling if needed or breaks mid hole, or between holes?
