The Klein Tools #1 square-recess screwdriver is purpose-built for electricians working on combination head receptacles, switches, and panel screws, offering a precision-machined Robertson tip that locks into fasteners cleanly to eliminate cam-out on repetitive termination work. Its heat-treated, chrome-plated round shank resists corrosion in tough job-site environments, while internal handle flanges create a solid, twist-resistant blade anchor that holds up under sustained torque. The Cushion-Grip™ handle with Tip-Ident® colour coding makes this driver easy to grab and identify at a glance in any tool bag or panel box.

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