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Milwaukee 48-89-1110 14 Piece Thunderbolt Black and Bronze Drill Bit Set
Thunderbolt drill bits are designed for use with cordless and other
portable drills. The bits are engineered with a thicker web and unique
flute form which allows for quicker penetration and improved drilling
times. With increased strength built into the web, the Thunderbolt bit
can perform many operations where conventional bits break. The open
flute form ejects chips more efficiently when drilling deep holes which
helps prevent lock-ups at breakthrough. Black and bronze high speed
steel provides heat resistance, durability and increases bit life.
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