Letter Size Cobalt Jobber Drills
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Letter Size Cobalt Jobber Drills; Straight Shank Twist Drills
Letter sizes A-Z
COBALT: Cobalt drills come in a variety of sizes and styles. The cobalt is heat resistant, and they can be used in a number of different applications including, screw machines, and portable drilling applications used for drilling hard, tough materials.
Cobalt drills are recommended for drilling stainless steel.