Features and Benefits:�Designed for Tapcon® Screws: SDS shank with hex shoulder performs in Tapcon® screw applications�Exact spot drilling: Centering tip improves accuracy�Extreme durability: Patented rebar chamfers increase tip strength and reduce wear�Fast drilling: Patented flute increases energy transfer and debris removal�Versatile: Drill and drill Tapcon® screws with a single toolMilwaukee's Carbide drilling bits offers a unique multi-faceted Carbide insert reducing the breakage possibility when drilling through re-bar and mesh. The distinctive chisel shaped tip breaks concrete quickly for faster penetration. The four fluted spiral shaft has improved dust removal resulting in less bending stresses. This kit allows drilling and installation of 3/16 in. and 1/4 in. concrete screws with using a single SDS plus rotary hammer tool. Contains components to install hex washer head or flat head designs.