Bosch SDS-Plus Hammer Bit 7/8" x 10"

The Bosch SDS-Plus Hammer Bit 7/8" x 10" (Model HC4C2146) from the Bulldog Tough™ line is engineered for fast, precision drilling in concrete and masonry—including reinforced concrete with rebar. Its advanced four‐cutter carbide tip and four‐flute geometry work together to remove dust quickly, keep the bit cool under load, and deliver up to twice the life compared to standard two‐cutter SDS-Plus bits. The built-in centering tip ensures accurate starts, making this bit ideal for anchoring and through-hole drilling.

Whether you’re a general contractor, electrician or plumber, this bit offers consistent performance in demanding jobsite environments. It’s designed for SDS-Plus rotary hammers and built with Bosch-manufactured carbide to withstand tough drilling applications.

Key Features

• Four-cutter carbide-tipped head design delivers up to 2× life in concrete with rebar
• Four cutting edges prevent bit jamming when encountering rebar
• Centering tip for accurate hole placement and better anchoring starts
• Four-flute design efficiently evacuates dust for faster, cooler drilling
• Bosch-made carbide material ensures durability and longer bit life
• SDS-Plus shank compatible with all SDS-Plus rotary hammers