The Bosch SDS plus-3 Drill Bit offers durability when drilling in concrete. Its 4-flute dura design provides effective dust removal for increased endurance, preventing heat development. Made of high-alloy steel with optimized hardening technology for wear resistance, it features indented cutting edges made from an ideal Bosch-controlled carbide blend. This bit is intended for work on concrete and masonry and is compatible with rotary hammers that have SDS plus holders. It is PGM Masonry Drill Bit Association Board tested, ensuring compliance with tight tolerances, exact drilling, and the firm hold of fixings. Fits all SDS plus rotary hammer drills. Features and Benefits: For Drilling Concrete, SDS plus-3 Drill Bit offers durability while drilling concrete, 4-flute dura design provides effective dust removal for increased endurance. Specifications: Diameter (D): 5.50mm, Working length (L1): 50mm, Total length (L2): 110mm.