32 - Piece Hex Bit Socket Set - 1/4", 3/8" & 1/2" Drives, SAE/Metric Sizes, S2 Steel Allen Head, with Corrosion - Resistant Blue Storage Case

High - Quality Material for Durability: The bits are made of S2 alloy steel, with a hardness of 56 - 62 HRC, which is wear - resistant and can maintain its shape under stress. The sockets are made of CR - V chrome - plated steel, with a hardness of 38 - 42 HRC, resisting breakage and corrosion, ensuring long - term reliable use. Comprehensive Size Coverage: This set includes both SAE and metric sizes. For 1/4" drive, it has SAE sizes like 5/64", 3/32" and metric sizes like 2mm, 2.5mm; for 3/8" drive, SAE sizes such as 9/32", 5/16" and metric sizes like 7mm, 8mm; for 1/2" drive, SAE sizes like 9/16", 5/8" and metric sizes like 14mm, 15mm. A total of 32 pieces, covering a wide range of applications. User - friendly Design: The allen socket set features a chamfered edge design with rounded triangular contact points, which can expand the contact area, ensure smooth insertion, and minimize fastener wear. The size is marked in a clear way, with deeply engraved, wear - resistant lettering that won't fade or peel, making it easy to identify the right size quickly.