Features 1、Made after blueing surface treatment, integrated forging, anti‑rust and durable, hardness up to 58‑60 2、12‑Side socket bit after chamfer design, possess high accuracy, not easy to slip, very stable 3、Adopt excellent S2 alloy steel material, come with large torsion, which is strong and durable 4、Humanized inner wall buckle design make the product non‑slip, so that the bit is not easy to slip, very stable 5、Screwdriver socket come with blister packaging, adopt hanging design, easy to take and store Specification Item Type: Socket Bit Material: Alloy steel Purpose: Working on tools such as wrenches Size: Length: Approx. 140mm / 5.5in, Socket Tip Diameter: Approx. 13mm / 0.5in System: Metric Specification Model: M14 Interface Type: 1/2 Drive port Interface Diameter: Approx. 22mm / 0.9in Package List 1 x Socket Bit