
Description
Description
Premium Jobber Length Drills are made from Special Hi-Molybdenum tool steel. 135° split point for fast penetration and accurate starting without a center punch. Precision ground point body clearance and drill diameter for the ultimate in accuracy and performance. Body and clearance are gold surface treated for maximum lubricity. Drills are heat treated at 2185° F and then nitro-carburize finished at 950° F to be measurably harder than high speed steel. Space aged nitro-carburized steel withstands substantially higher drilling temperatures while maintaining sharpness. Recommended for use in work hardening grades of stainless steel and other hard metal drilling applications. Sizes smaller than #52 have non-split points.
- Manufactured from a special high molybdenum tool steel
- Gold surface treated for maximum lubricity
- 135° split point
- Made in USA
- 1/16” through 1/2” by 64ths
- A through Z
- 1 through 60