Power & Hand Tools By Drill America

• Manufactured from M2 premium grade high speed steel
• For use in a wide range of materials in the iron and steel families such aluminum, iron, stainless steel and other hard metal drilling
• 135 degree split point tip for self-centering and reducing thrust
• Black and gold surface treated for use in stainless steel and other hard metal drilling
• 115 piece set comes in metal case with sizes #1-60, A-Z & 1/16-1/2 x 64ths

• Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
• Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
• Round shanks allow use with a wide variety of toolholding systems
• When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
• Manufactured to National Aerospace standard 907