• 13-piece set with a wide range of SAE bit sockets, designed with superior materials for greater torque and unmatched hardness. • Heat-treated and forged S2 alloy steel bits to reduce wear. Hardened chrome vanadium steel sockets to increase torque power. • Complete resistance to rust and corrosion thanks to the fully polished chrome mirror finish sockets and zinc phosphate treated bits. • Smooth and precise insertion with beveled tip. Sizes are stamped on the sockets and on the heavy-duty storage case for quicker recognition. • Includes all essential sizes for working on bicycles, cars, appliances, lawn equipment, machinery, and any other job requiring standard hex fasteners. • Precisely manufactured using CNC (computer numerical control) machine that includes beveled edges to ensure a smooth fit and protection for both the bit ends and fasteners. • Product dimensions: Width: 4.6 cm, Height: 14.5 cm, Length: 20.3 cm, Weight: 0.011 kg.