KLEIN 661 - #1 Square-Recess Tip Screwdriver, 4-Inch Shank Fermented Optimized for the toughest fasteners

Optimized for the toughest fasteners and roofing materials encountered in residential remodeling

Built-in power regulator and trigger control

Reinforced Stability: Constructed from durable polycarbonate plastic with a solid steel core for long-lasting structural integrity

(1) OPEN-LOK™ 2-1/2" HCS Wood Multi-Tool Blade

offering long-lasting reliability

KLEIN 661 - #1 Square-Recess Tip Screwdriver, 4-Inch Shank Fermented Optimized for the toughest fastenersThe Klein Tools 661 is a professional grade square recess tip screwdriver engineered for the rigorous demands of electrical and industrial applications. Designed specifically for working on combination head receptacles, switch plates, and panel screws, this tool provides the precision and durability that tradespeople rely on. Featuring a heavy duty, heat treated steel shaft, it is built to withstand high torque without compromising tool integrity.