KLEIN 661 - #1 Square-Recess Tip Screwdriver, 4-Inch Shank Fermented Built-in power regulator and trigger

Built-in power regulator and trigger control

forged blade

Strengthened 1" oversized blade body for extreme cutting applications

making this level reliable and efficient for professional tasks

the PF838CDW delivers a smooth

KLEIN 661 - #1 Square-Recess Tip Screwdriver, 4-Inch Shank Fermented Built-in power regulator and triggerThe 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.