Engineered with thickened wrench body for superior torques capacity and ergonomic nonslip handle, these high carbon steel tool maintain accuarcy even under heavy mechanical stress Tackle stubborn fasteners in garages, workshops, or home projects with these glass combination wrenches for engine repairs and machinery adjustments The graduated thickness across size ensures optimal grip comfort during extended use, while the storage design keep your high carbon steel tool set organized in toolboxes or service vehicles This combination wrench set features double ended open end and box designs, crafted from 45# high carbon steel for excellent durability and rusts resistance, ideal for tackling various nut/bolt size in automotive and household repairs Perfect for professional mechanics, craft enthusiasts, and industrial technicians needing efficient double ended wrenches for automotive maintenance or equipment assembly tasks, Manufacturer: Uitndvyte