Hammer drill SDS-plus-7X. Diameter: 10 mm, spiral length: 250 mm, total length: 315 mm. Contents of sales package: 1 piece. The 4-cutter solid carbide head offers three times longer life in reinforced concrete. The ultimate sharp 90-degree centering tip ensures deep and stable centering. Large dust removal channels and a 4-spiral design facilitate fast dust removal and the highest drilling speed. The solid carbide 4-cutter provides exceptional life and resistance in reinforced concrete.