58721 Type 190-P 135Â degree Split Point Black Oxide HSS Parabolic Flute Drill Bit (12 pack) 90mm ID • Provides exceptional oxidation resistance

• Provides exceptional oxidation resistance and extreme hardness

The Durawhip® was designed to be installed on a jackhammer as a lightweight whip hose

000 rpm with a simple valve in between the air source and air motor

Helps Eliminate Deposits

58721 Type 190-P 135Â degree Split Point Black Oxide HSS Parabolic Flute Drill Bit (12 pack) 90mm ID • Provides exceptional oxidation resistanceParabolic flute drills are designed to allow deep hole drilling without frequent drill removal to clear chips. Parabolic flute drills preform best in low to medium tensile strength materials. Click Here for product catalog Proudly Manufactured in the U. S. A