05240 Type 190 HSS Black Oxide Jobber Length 135Â degree Split Point Drill Bit (12 pack) 31mm Center Distance Click here for spec sheets:

Click here for spec sheets: BUCTF Spec Sheet

Reduction Stages: Double

Bost-Bronz® has a self-contained oil supply (approximately 20% by volume) which provides a uniform protective film over the entire bearing surface

• Heavy-duty construction for drilling in tougher materials

05240 Type 190 HSS Black Oxide Jobber Length 135Â degree Split Point Drill Bit (12 pack) 31mm Center Distance Click here for spec sheets:Heavy 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