77221 Type 150-N Jobber Length TiN Coated NAS 907J 135Â degree Split Point Drill Bit (6 pack) #64 Boston Air Motors can be

Boston Air Motors can be stalled or overloaded for long periods of time without damage

2ND REDUCTION Helical 10:1 gear set fits gearbox sizes SK1SI40/50/63

Good up to 225ºF maximum

Because Boston Air Motors go to work with air-cushioned smoothness they cut stress on your equipment

77221 Type 150-N Jobber Length TiN Coated NAS 907J 135Â degree Split Point Drill Bit (6 pack) #64 Boston Air Motors can beManufactured from M42 HSS containing 8% cobalt which increases high red hardness. Cobalt drills require rigidly held positive feed drilling equipment. Titanium Aluminum Nitride can be used in machining stainless steel, nickel based and titanium alloys, not recommended for aluminum. Manufactured to NAS 907J specifications. Titanium nitride coating for lubricity and extended tool life. Click Here for product catalog Proudly Manufactured in the U. S. A