Master Mechanic 287105 Black Oxide Extra Length Drill Bit, 7/16" x 12"

135 point angle with 4 cutting edges which eliminate walking and provide fast penetration. Black oxide tempering treatment reduces frictional resistance and improves chip flow. Recommended for wood, plastic, wallboard, plywood and soft metals, aluminum, brass, and bronze. For occasional use in stainless steel and other hard metals.

• Master Mechanic
• Extra length
• High speed steel
• 135 point angle with 4 cutting edges which eliminate walking and provide fast penetration
• Black oxide tempering treatment reduces frictional resistance and improves chip flow
• Recommended for wood, plastic, wallboard, plywood and soft metals, aluminum, brass, and bronze
• For occasional use in stainless steel and other hard metals
• Carded

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