5 Metric Sizes for Diverse Needs : Available in 5 common metric sizes: 8mm/0.31inch , 10mm/0.39inch , 12mm/0.47inch , 13mm/0.51inch , 14mm/0.55inch , (12cm/4.76 inches long) . Choose the right size based on actual requirements for precise fitting High Hardness for Heavy Duty Use : Crafted from chrome alloy steel , all sockets undergo heat treatment to achieve exceptional hardness and toughness . They withstand high torque operations without breaking or deforming . The polished chrome plated is effortless to clean , making them ideal for high intensity work environments 3/8 Inch Socket Set : All sockets feature a standard 3/8 inch square drive , easily compatible with manual ratchet wrenches , lithium ion wrenches , impact wrenches , and pneumatic tools , boosting work efficiency across tasks Widely Applicable : These deep sockets are perfect for auto mechanics to quickly change tires , detach chassis parts , and handle daily hardware repairs , pipe tightening , appliance disassembly , mechanical equipment maintenance , and regular bolt inspections, Manufacturer: Akfldms