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 48-89-1120

 20 Piece Thunderbolt® Black and Bronze Drill Bit Set

FEATURES 
Thunderbolt® web for increased strength
Open flute design for efficient chip ejection
Faster spiral for improved drilling times
Black and bronze finish reduces friction keeping the bit cooler

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.