7/16 IN. HIGH SPEED STEEL STUBY NITRO DRILL HEAVY DUTY BIT
Drillco
2101865
300N128
Description
Manufactured from a premium grade of M-7N molybdenum high speed steel.˜ the Nitro Heavy Duty 135 degree Split Point drill with a Nitride surface treatment that give a hard protective layer to the drill (increases hardness without increasing brittleness) which is measurably harder than high speed steel.˜ Body and clearance are gold and black surface treated for maximum lubricity.˜ Recommended for use in stainless steel and other hard metal drilling.
Key Features
- Material: High Speed Steel
- Finish/Coating: Black & Gold