Simpson SDS-Max Quad Head Drill Bit 1-1/8 in. x 21 in. Carbide MDMX11221Q Profile Knives & Limiters Length: 5-1/2 in

Length: 5-1/2 in

drill bit to ensure correct hole sizing and optimal performance

Compatible with 6x6 lumber columns

reliable connection between the stair stringer and the carrying header or rim joist while replacing costly framing

Simpson SDS-Max Quad Head Drill Bit 1-1/8 in. x 21 in. Carbide MDMX11221Q Profile Knives & Limiters Length: 5-1/2 inKey Features Uniformly Brazed Carbide Inserts: Delivers consistent bonding across all cutting edges, resulting in longer bit life and sustained cutting performance. Self Centering Tips: Ensures accurate hole placement from the very first strike, reducing the risk of bit walking on hard surfaces. Chromium Nickel Molybdenum Steel Alloy Body: A premium alloy construction that ensures exceptional hammering quality and an extended service life under heavy