Drill Bit SDS-PLUS 7/16″x 12-1/2″

Makita D-00957, SDS-Plus Drill Bit 1/2 Inch X 12 Inch x 1/4 Inch.
Used for drilling holes in poured concrete and other masonry. Polished for Longer Bit Life. For use with electric or cordless rotary hammers and Increased Steel Prevents Breakage.