Features 【Heavy-duty Material】The screwdriver bit is made of chromium-vanadium alloy steel, which is durable, impact-resistant, wear-resistant and durable. All tools have high hardness. 【Good Performance】The impact force helps loosen rusty or frozen screws without causing damage. 【Portable】Easy to carry and use, all tools are stored with the suitcase. 【Non-slip Handle】Comfortable grip, non-slip grip, comfortable to hold and operate. 【Purpose】You can use this nssary tool to apply for loosening or tightening fasteners. Specifications: Material: Chrome vanadium alloy steel Quantity: 12pcs Handle length: 16cm Interface size: 12.5mm Package List: PH2 (80mm)1 PH2 (35mm)2 PH3 (80mm)1 10mm Slotted (35mm)1 10mm Slotted (80mm)1 8mm Slotted (35mm)1 8mm Slotted (80mm)1 Decapitation extractor 4#1 Decapitation extractor 3#1 Chrome vanadium steel impact rod1 Package List