The Simpson Strong-Tie SDS-Plus Shank MDPL10010Q Drill Bit 1” x 10” with Quad Head4x offers contractor-grade quality for use in commercial construction. This compatible bit fits all current and older SDS-plus rotohammers and conforms to ANSI Standard B212.15. Professionals enjoy its enhanced features including its chromium-nickel-molybdenum steel alloy body which improves ease of use, hammering quality and overall efficiency. For added benefit, this high-volume double-helix bit has a centering tip for easy spot drilling, along with uniformly brazed carbide inserts resulting in extended bit life.