Bosch Extra-Length Aircraft Black Oxide Drill Bit - 5/16-in x 12-in - 135° Split Point - Round Shank - Each

Puncture various materials such as metal and plastic with the Bosch metal drill bit. Work faster with the speed helix design, which eases drilling for low heat buildup and lasting use. Black oxide gives it strength and corrosion resistance. Reduce skating with the 135° split point, which begins on contact. This Bosch black oxide drill bit is 12 in L x 5/16 in dia with a 10-inch flute.
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