Product Overview
Alfa USA Cobalt Screw Machine Length SWG Number Drill Bit, #21 Diameter, 0.1590 Decimal Equivalent, 1-1/16" Flute Length, 2-1/8" Overall Length, M42 High Speed Steel, 135° Split Point, Straw Gold Finish, Straight Shank, Right Hand Spiral, Heavy Duty, Made in USA
