Features: This combination wrench set features double ended open end and box designs, crafted from 45# high carbon steel for exceptional durability and rusts resistance, ideal for tackling various nut/bolt size in automotive and household repairs. 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. Perfect for professional mechanics, DIY enthusiasts, and industrial technicians needing reliable double ended wrenches for automotive maintenance or equipment assembly tasks. Tackle stubborn fasteners effortlessly in garages, workshops, or home projects with these mirror polished combination wrenches optimized for engine repairs and machinery adjustments. The graduated thickness across size ensures optimal grip comfort during extended use, while the convenient storage design keep your high carbon steel tool set organized in toolboxes or service vehicles. Specifications: Material: high carbon steel Type:6Pcs Set/7Pcs Set/8Pcs Set/10Pcs Set/12Pcs Set(Optional) 6Pcs Set Size:Approx.18X18X6CM/7.09x7.09x2.36inches 7Pcs Set Size:Approx.19X18X6CM/7.48x7.09x2.36inches 8Pcs Set Size:Approx.23X21X6M/9.06x8.27x2.36inches 10Pcs Set Size:Approx.25X23X6CM/9.84x9.06x2.36inches 12Pcs Set Size:Approx.29X27X6CM/11.42x10.63x2.36inches Package Includes: 1Set Open-End Wrench Tool Set note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.