BOSCH Speed-X™ HC4021 Rotary Hammer Drill Bit Flute Length:8 bolts and handle to protect

bolts and handle to protect against corrosion

tight-fitting seam

Height: 25

Infinity Series

Bristle Material: Stainless Steel

BOSCH Speed-X™ HC4021 Rotary Hammer Drill Bit Flute Length:8 bolts and handle to protectBOSCH Rotary Hammer Drill Bit, 1 in Drill, 21 in Overall Length, 16 in Cutting Depth, Spline Shank, 16 in Flute Length, Centering Point, Carbide, Applicable Materials: Concrete, MasonryFeatures: Tungsten carbide tip provides superior wear resistance in tough applications Active centering tip for optimum guidance when drilling in concrete and reinforced concrete Large flute volume for fast drilling, dust transport and less clogging Narrow flute back