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1/4"Bore= #6-32 setscrew
then plated to provide years of service
Bost-Bronz® is Boston Gear’s all-purpose
Size 63- 0
27100 Type 150-M Metric Jobber Length 135Â degree Split Point M42 Cobalt NAS 907J Drill Bit (10 pack) 3" Extension 1/4"Bore= #6-32 setscrewManufactured from M42 HSS containing 8% cobalt which increases high hot hardness. Cobalt drills require rigidly held positive feed drilling equipment. Manufactured to NAS 907J specifications. Click Here for product catalog Proudly Manufactured in the U. S. A
