Precision Twist Drill Surface Treated H.S.S. Jobbers Length Twist Drill, Size #49, .0730″ Decimal Diameter, 1″ Flute Length, 2″ Overall Length
- H.S.S. – High Speed Steel
- Hardness: 58 to 60 RC
- Series: R18-B
- Surface treatment increases abrasion resistance, reducing the amount of chip welding improving chip flow
- Drill Point Angle: 135
- Point Sharpening Type: Split Point
- Finish Coating: Black Oxide
- Right hand (clockwise rotation) cutting direction
- Shank Style: Straight Shank
- Standard two flute design.
- Standard spiral, helical flutes.
- Workpiece Material Range: Steel, Cast Iron, Plastics
For More Precision Twist Drill Surface Treated H.S.S. Jobbers Length Twist Drills – Number Sizes #27 to #52 Click Here
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