Features and Benefits:�Fluted Design: Continuous deep hole drilling without the need to remove a core�For use with drop-in anchors�Patented Flute Geometry to Remove Debris Rapidly and Maximize Impact Energy�Stopping Shoulder to Drill Accurate Depths RepeatedlyMilwaukee® SDS-Plus shank stop bits are ideal for use with drop in anchors. The stopping collar controls the drilling depth allowing for repeatable, fast and accurate holes. The patented flute geometries removes debris rapidly while maximizing impact energy. The centering tip reduces bit walking for exact spot drilling. A variety of bits are available for the most common drop in anchor sizes. Please see anchor manufactures guides for correct stop bit to be used with anchor. Bullets: for use with drop-in anchors; stopping shoulder to drill accurate depths repeatedly; patented flute geometry to remove debris rapidly and maximize impact energy; centering tip to reduce bit walking and create exact spot drilling.