11/16” x 21” Simpson Strong-Tie SDS-max Drill Bit

The Simpson Strong-Tie SDS-max Shank Drill Bit MDMX06821Q 11/16” x 21” with Quad Head4x is a professional-grade, quality tool ideal for concrete & masonry applications. This drill bit incorporates a variety of new features that enhance its durability and drilling speed, while improving ease of use. Product quality and bit life is extended on this premium tool by its chromium-nickel-molybdenum steel alloy body and uniformly brazed carbide inserts. Installers appreciate the centering tip featured on most SDS-max bits that facilities easy spot drilling.

SDS-max drill bits have a tough resistance to bending forces and wear, as they’ve been heat-treated with a shot-peened finish. The finish on these bits simultaneously increases drilling speed and surface hardness as well. Ease of use is amplified with a chisel-shaped head that easily penetrates material. The 4 x 90° head geometry crushes through rebar to prevent sticking in concrete. You’ll find the high-volume, double-helix design of this quad-head bit highly efficient as its patented, high-performance, reinforced core flute maximizes energy transfer upon use. This compatible bit fits all current and older SDS-max rotohammers from Black & Decker, Bosch, DeWalt, Hitachi, Hilti, Kango, Makita, Metabo and Milwaukee. Drill with confidence knowing the SDS-max bit conforms to ANSI Standard B212.15. This product comes as a box quantity of 1. Order today from Nail Gun Depot and begin your new premium drilling experience.