12pcs Square Head Bits 50mm Magnetic Square Head Screwdriver

Square screwdriver bits made from heat treated S2 alloy steel and finished with manganese phosphate black finish; They provide hardness, high torque strength and long-lasting protection against rust and corrosion. Complete 12 piece square head screwdriver bit set includes a full range of square bit sizes to meet all needs: (2x) SQ0, (2x) SQ1, (4x) SQ2, (2x) SQ3 and (2x) SQ4. Length: 50 mm. Each tip is clearly labeled for quick identification. Comes with a convenient bit holder for storing tools; Standard 1/4 inch hex shank fits perfectly with most electric drills, impact drivers and manual screwdrivers. CNC machined bits for precise fit that minimizes derailment and unscrewing; Strong permanent magnetic bits hold screws in place for easy one-handed operation. This square bit is designed for heavy duty industrial use and home DIY projects; Ideal for furniture assembly, deck construction, automotive repair, electronics and general woodworking.