05030 Type 190 HSS Black Oxide Jobber Length 135Â degree Split Point Drill Bit (12 pack) High Flow air flows freely through the

air flows freely through the chuck

and lubricate your compressed air system in a small package

helical gears with opposite-hand helix angles are required

All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together

05030 Type 190 HSS Black Oxide Jobber Length 135Â degree Split Point Drill Bit (12 pack) High Flow air flows freely through theHeavy duty construction for drilling in tougher materials Manufactured from premium high speed steel 135 split point is self centering for reduce thrust and easier penetration Manufactured to NAS 907 B aerospace specification Click Here for product catalog Black oxide surface finish increases wear resistance and adds lubricity to improve chip flow. Proudly Manufactured in the U. S. A