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• Rotary/Percussion carbide tipped, straight shank
• Chrome vanadium spring steel shaft
• Carbide tipped for maximum wear resistance
• Tips sharpened by diamond wheels for maximum cutting power
• Patented flute geometry, removes dust from hole quicker for faster drilling
• Drills larger than 1/2" have 1/2" reduced shank
• For use with roto-percussion drills
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