15 Piece Cryogenic Treated HSS Black and Gold Split Point Drill Bit Set in Round Case

• 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
• 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
• Cuts faster, longer and produces smoother holes than standard drill bits
• Surface hardness 70 Rockwell C
• Can be used in place of a cobalt drill bit when drilling 300 & 400 stainless steel
• KFD Killer Force Drill Bits are manufactured from M2 premium grade high speed steel
• Black and gold surface treated for use in stainless steel and other hard metal drilling
• Drill Bits Made in U.S.A.
• Rust resistant, water and shatter proof BIT Cooler case
• Sizes in the set include: 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32" and 1/2"