The Klein 85664 4-Piece Square Recess Screwdriver Set contains No. 0 tip, No. 1 tip, No. 2 tip, and No. 3 tip screwdrivers with color-coded handle ends for quick and easy identification. Other features include: Round shanks with square recess tips for square recess screws. Chrome-plated shafts resist corrosion. Cushion-grip handles for greater torque and comfort. Double wings inside handles provide solid, twist-resistant blade anchors. Works on most combination head receptacle, switch and panel screws. Set contains Klein part numbers 660, 661, 662, and 663. Weight: 1.0-Pound. Safety information: Always wear approved eye protection. NOT insulated-will NOT protect against electrical shock. Do NOT use to pry or chisel.