SDS Hammer drill, SDS shank twist drill Shank type: SDS Plus, SDS Max, Spline shank. SDS Hammer drill ,SDS shank drillShank type: SDS Plus, ... flute design 2. Diameter:3mm-30mm; total length: 110-1000mm 3. Cross head, three cutting edges and double flute available. 4 ... . For drilling in granite, concrete, stone, masonry, tiles and marble. 5. The electric hammer drill bits are machined from ...