Teardrop, single gear. 45 teeth, 8 deg (degree) space requirement for each turn. Chrome vanadium steel. Meets or exceeds ANSI (American National Standards Institute) specifications. Lifetime warranty.
Power screwdriving bit is cryo-temp hardened for longer tip life. 1/4″ hex shank fits all standard bit holders and hand-held drivers. ACR ribs on bit tip reduce cam-out. Special torsion zone reduces bit slippage and fracture. Precision formed tip for proper fit. Carded.
Brazing formula optimizes drilling. Unique flute geometry provides efficient dust removal. Centering point provides accurate and precise round holes. For drilling into brick, block, and concrete.