Our SDS+ hammerdrill bits are fully hardened, high performance drill bits with a tungsten carbide tip and SDS+ shank fitting. SDS+ drill bits are inserted by simply pushing the bit into the chuck and is held in place by two grooves in the bit. No tightening is required and this system allows the quick change of drill bits. SDS+ drill bits are suitable for drilling a wide range of materials, such as granite, concrete, masonry, tiles and many other common building materials. Our SDS+ drill bits are twin fluted for fast dust removal which improves not only the drilling speed, but also improves the life of the drill bit.