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chemicals and debris
Smart chip recognizes and optimizes the charging requirements of individual devices
dust mite debris and mold spores
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Large silver-cadmium oxide contacts insure long life
Milwaukee Thunderbolt 1/2 In. Black Oxide Drill Bit Schneider chemicals and debrisMilwaukee Thunderbolt Black Oxide jobber length drill bits are designed for extreme durability and long life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes.