Bosch HC2146 Rotary Hammer Drill Bit Concrete, 10" Clearance Thanks to the advanced precision

Thanks to the advanced precision induction technology

Work with deck & fence brightener wood cleaner

All roofing materials must be kept clean and free of moisture prior to installation

Sound dBA (pressure/power) 82

Installs ducted 3-1/4" x 10" (vertical and horizontal)

Bosch HC2146 Rotary Hammer Drill Bit Concrete, 10" Clearance Thanks to the advanced precisionHighlights: 7 8" diameter 8" usable length 10" overall length Solid carbide head tip Drills faster with less carbide wear Flute design runs cooler with fast dust removal Active conical tip provides cleaner, rounder holes Wear mark on bit assures accuracy of hole diameter Diffusion bond for extreme durability in rebar and all concrete types