The Bosch HS1909-12 SDS-max® 12.5 In. Bushing Tool is a longer bushing tool for more comfort so the user has less bending while working.. The longer 12.5 In. shank on the bushing tool allows use with the optional Bosch HDC300 dust-extraction attachment. The attachment is part of the Bosch PRO+GUARD™ end-to-end dust-protection system. The head is engineered for longer life in heavyweight applications. The shank is made from high-strength heavy-duty steel. This is the tool to use to remove excess concrete and bumps, while tacking down the exterior finish. The head design is optimized for fast concrete-roughing results. This one-piece tool has a precision-made SDS-max® shank designed for maximum power transfer for consistent force on the head of the tool.