Simpson 0.275 x 12" Strong-Drive SDWH TIMBER-HEX Stainless Steel Screw Planer & Jointer Knives The air supply attachment uses

The air supply attachment uses a 1/4-18 NPT (male) thread connection

Up to 7X longer life versus standard 2-cutter hammer drill bits

Kit includes the EB-GUIDE predrilling tool

Brush Head Size: 1-1/8 in

Its Type-17 point and inverted upper threads are specifically designed to penetrate and secure composite deck boards cleanly

Simpson 0.275 x 12" Strong-Drive SDWH TIMBER-HEX Stainless Steel Screw Planer & Jointer Knives The air supply attachment usesSimpson Strong Drive SDWH TIMBER HEX Stainless Steel Screw 0. 275" x 12" by Simpson is a heavy duty structural fastener engineered as a direct replacement for traditional lag screws in wood framing and timber construction. Built from Type 316 stainless steel, this hex head screw delivers exceptional corrosion resistance in saltwater environments, coastal applications, and contact with pressure treated lumber making it a reliable choice wherever long