For drilling concrete, masonry, wood and metal, the new Bosch 11224VSRC 7/8-inch SDS-plus® Rotary Hammer with its patented ClicLoc™ Chuck Change System is the answer. ClicLoc provides versatility without performance loss. Users simply slide the chuck collar forward to entirely release the SDS-plus tool holder from the tool, and then click the included three-jaw keyless chuck in its place. By selecting from one of the three mode options - rotation-only, rotary hammer or hammer-only - users have one tool to do the job of three.