Bosch 2608680279 - 12 mm SDS Plus 1 Hammer Drill Bit belongs to basic series of drills in Bosch line. It has a U shaped spiral that perfectly copes with the extraction of dust during the operation. Bosch hammer drill bit has two cutting edges that are made up of carbide alloy cope with excellent work over brick and concrete. Bosch SDS Plus-1 drill bits have a standard service life. It is suitable for all guns with SDS plus cartridge. It has a working length of 200mm and the total length of 260mm with the diameter of 12mm. It has an insert of tungsten carbide brazed into steel to provide the precise cutting edge.