1、Extra‑hard S2 alloy steel material with blueing surfacetreatment, integrated forging, hardness up to 58‑60, which is anti‑rust and durable 2、Adopt bit chamfer design, hex bit come with high accuracy, not easy to slip, very stable 3、Support multi‑functional use, can be used with tools such as ratchet wrench/bend rod/connecting rod/sliding rod 4、Made with excellent craftsmanship to bring smooth surface, which is beautiful and practical 5、1/2in interface quick wrench socket bit with stable structure, excellent performance and long service life Item Type: Socket Bit Length: Approx. 200mm / 7.9in Material: S2 alloy steel Hardness: HRC58 Surface Treatment: Bluing Specification: H7 Bottom Square Diameter: 1/2 inch 1 x Socket Bit