Simpson 7/8 in. x 21 in. SDS-Max Quad-Head Carbide Drill Bit MDMX08721Q Hollow Drop-In Internally Threaded Anchor the ECC5 1/4-4HDG is built

the ECC5 1/4-4HDG is built to withstand demanding structural requirements

Built for demanding framing applications

and long cutting life in cordless or corded saws

Product Type Downcut Spiral Bit with Chipbreaker

Simpson 7/8 in. x 21 in. SDS-Max Quad-Head Carbide Drill Bit MDMX08721Q Hollow Drop-In Internally Threaded Anchor the ECC5 1/4-4HDG is builtKey Features Uniformly Brazed Carbide Inserts: Uniformly brazed carbide inserts resulting in longer bit life. Self Centering Tips: Self centering tips for accurate hole placement. Chromium Nickel Molybdenum Steel Alloy Body: Chromium nickel molybdenum steel alloy body ensures hammering quality and extended service life. Heat Treatment & Shot Peened Finish: Heat treatment procedures and shot peened finish increase surface hardness, drilling speed,