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From the Manufacturer Champion Cobalt Jobber Twist Drills have heavy duty web construction. 705C cobalt twist drills are manufactured from heat-resistant premium cobalt high speed steel. These cobalt drills can maintain their cutting ability at high temperatures and are extremely resistant. Made in the USA.
1/16 through 1/2 x 64th, No.1 through No.60, A through Z
135 degree split point
136 degree split point
M42 Cobalt Type "J" Gold Oxide Treatment
Used in high tensile materials such as high-strength alloy steels, stainless steel, titanium, manganese steel, armor plate and inconel