SDS drill bits with symmetrical 4-cutter geometry (4 x 90°) for precise round holes and optimal anchor fitting. Designed with a sharp angled centering tip for accurate spot drilling and improved performance on rebar. 510mm diameters feature durable, welded solid carbide tips allowing a wider flute entrance for fast drilling. High-volume 4-flute design ensures efficient dust and debris removal. Variable flute profile with a thinner tip section offers reduced friction and quick clearance, and a thicker base provides stability and reduced breakage. Features 4 breaker points for effective material removal and rebar guards for added resistance. Carbide SDS Plus Shank 5.5mm-10mm Dia. Drill Bits Suitable for Concrete & Masonry Carbide Tip For Use with SDS Plus Drills Carbide SDS Plus Shank 5.5mm-10mm Dia. Drill Bits Suitable for Concrete & Masonry Carbide Tip For Use with SDS Plus Drills