With the Dewalt DT8937-QZ SDS-plus hammer drill bit, you can drill deep and clean holes in reinforced concrete, masonry, and stone with complete confidence. Its solid 4-cutter carbide head prevents jamming when striking rebar, protecting against premature breakage while delivering accurately round holes for secure anchor fixings. The four-flute helix clears dust quickly to maintain smooth and fast drilling progress. Featuring a 12 mm diameter, a 400 mm working length, and a 460 mm total length, this bit gives your SDS-plus rotary hammer the reach and durability needed for heavy-duty installation work.