21/64" Cryogenic HSS Black & Gold Jobber Length Drill Bit

Product Description
KFD Killer Force Drill Bits are manufactured from M2 premium grade high speed steel. Cryogenic KFD Drill Bits are cryogenically frozen to -300°F for 48 hours. Cryo treating the drill bits results in increased tool life, torsion strength and improved corrosion resistance. They are black and gold surface treated for use for use on alloy steel, aluminum, brass, bronze, carbon steel, spring steel, stainless steel, tool steel and other metals. Cryogenic treatment prevents breakage and chippage and cuts faster, longer and produces smoother holes than standard drill bits. For use on surface hardness 70 Rockwell C. 3-flat shank to prevent spinning. Can be used in place of a cobalt drill bit when drilling 300 &400 stainless steel.

Brand Drill America
Part Number CRYKFDPRO21/64
Size 21/64"
Material High Speed Steel
Finish Black and Gold
Flute Length 3-5/16"
Overall Length 4-5/8"
Point Split Point
Shank Type 3-Flat
Point Angle 135
Number of Flutes 2
Treatment Cryogenic