Premium S2 steel bits provide optimal strength and durability to unfasten intractable screws and bit ends are sized for precise fitting. Sockets are made of enduring Chrome-Vanadium. Set Includes: 10-pc. 3/8 in. drive bit sockets (4 inch): 4, 5, 6, 8, 9, 10, 12, 14, 16, 18 mm. Storage and carrying case included.

• DURABILITY: bits made of premium S2 alloy steel for superior hardness that reduce wear-outs and insure longevity
• TORQUE STRENGTH: high strength chrome vanadium steel sockets provide superior torque for greater turning power with mirror chrome finish for corrosion resistance
• PRECISION BITS: precisely and automatically machined bit tips to ensure accurate size, chamfered bit ends insert smoothly into fasteners and protect both bits and fasteners from damaged edges
• ORGANIZED STORAGE: set includes a sturdy plastic organizing case for secure storage and easy carrying
• 10-pc XZN triple square spline bit socket set includes: 1/4" Drive: 4mm, 5mm, 6mm; 3/8" Drive: 8mm, 9mm, 10mm, 12mm, 14mm (tamper proof); 1/2" Drive: 16mm (tamper proof), 18mm (tamper proof)

DURABILITY: bits made of premium S2 alloy steel for superior hardness that reduce wear-outs and insure longevityUcostore