Product Overview
Alfa USA Cobalt Screw Machine Length SWG Number Drill Bit, #57 Diameter, 0.0430 Decimal Equivalent, 1/2 Flute Length, 1-3/8" Overall Length, M42 High Speed Steel, 135° Straw Gold Finish, Straight Shank, Right Hand Spiral, Heavy Duty, Made in USA, 12 per. Alfa Tools SMCO60357 #57 Cobalt Screw Machine Drill
