1. Quenched and heat-treated S2 alloy steel bits, hardness arrived at 58-60 HRC, reducing wear-outs.2. Have dual hex ends of different lengths that give you multiple options for working around obstructions.3. T-handle design provides a firm grip and achieves large torque.4. The hex end is chamfered to slide easily into the fastener, reducing wear on the wrench and fastener head.5. Applied in DIY hand-making, household maintenance, and most machinery and equipment, and office quick repairs.Specification:Material: S2 Alloy Steel, PP+TPRFinish: Chrome Plated, Red PaintSize: 8mmTotal Size: 200mm x 114mm / 7.87-inch x 4.49-inch (L*W)Long Arm Shaft Length: 140mm / 5.51-inchShort Arm Shaft Length: 17mm / 0.67-inchPackage Content:1 x Hex Key Wrench.