Neiko 03168A Carbon Steel 30 mm Combination Wrench Extended Reach Drop forged, heat treated carbon steel body is designed for high durability to handle heavy duty operation Extra large 30mm build provides power and leverage control for high torque on tough bolts and nuts Fully polished, chrome plated finish on ratchet wrench maximizes longevity in abrasion and resists corrosion Double side with standard close and open box end is designed for swifter movement, tighter grip control and versatility Box end has 12-points hex for speed and allows access to fine indexing ideal for mechanics working on cars, bicycles, and more