Bosch Drill Bits & Parts Hammer drill bit 607735 - Bosch 2608685867, The Bosch SDS max-4 hammer drill bit is designed for robust masonry applications such as stone and brickwork. Measuring 22x400x520mm, it facilitates efficient drilling with SDS-Max compatibility. Typical uses include heavy-duty drilling tasks in construction and renovation projects. Bosch 2608685867 SDS Max-4 Hammer Drill Bit 22mm for Concrete/Masonry