Bosch Powertool Accessories Expert Sds Max-8X Hammer Drill Bit 18 X 540MmBosch EXPERT SDS Max 8X Hammer Drill Bit is ideal for construction professionals drilling concrete and reinforced concrete regularly, such as for heavy duty anchors or rebar extensions. The full carbide head features an advanced 4 cutter design made from a single piece of the toughest metal: It doesnt jam and presents no weakness on impact. 1 x Bosch EXPERT SDS Max 8X Hammer Drill Bit 18 x 540mm