Simpson 1-1/8 in. x 18 in. SDS-Plus Quad Head Carbide Drill Bit MDPL11218Q Titen HD Thread Gauge Left and right cast iron

Left and right cast iron extension wings for expanded workspace support

blending more naturally with installed siding

The chisel-shaped drill-bit head is designed to penetrate material efficiently while directing concrete dust into the high-volume

accurate strokes

Meets permanent wood foundation standards - stainless steel nails of this type are recommended for permanent wood foundation construction per ANSI/AWC Permanent Wood Foundations Design Specifications

Simpson 1-1/8 in. x 18 in. SDS-Plus Quad Head Carbide Drill Bit MDPL11218Q Titen HD Thread Gauge Left and right cast ironKey Features Uniformly Brazed Carbide Inserts: Uniform brazing of carbide inserts results in longer bit life and consistent cutting performance throughout the life of the bit. Centering Tip: Contains a centering tip that facilitates easy spot drilling, improving accuracy from the first strike. Chromium Nickel Molybdenum Steel Alloy Body: The premium steel alloy body ensures hammering quality and extended service life under heavy rotary hammer use.