Perfect screwdriver set including 4pcs screwdriver withoutdifferent sizes. Suitable for repairing television, refrigerator, electric fan, home appliances and other device maintenance. Features: Multifunctional screwdriver set, including 4pcs of screwdrivers to meet different demands. Made of CRV 6150# with quenching forging, it's hardness can reach to HRC42-48, guarantee for long time use. U type screwdrivers are mainly used for disassembling bull sockets. Y type screwdrivers are mainly used for some brands of keyboards and mouse games, removing boxing jacks and demolition of humidifiers and other appliances. Triangle type screwdrivers are mainly used for repairing household appliances of brand PHILIPS, FLYCO and so on. Note: *Please note that screwdrivers are randomly sent in black or silver tip. Specifications: Type: U Type / Y Type / Triangle Type (Optional) Color: Blue + Black Material: PP + Chrome Vanadium Steel(CVR 45#) Hardness: HRC42-48 Type: Combination Screwdriver Set Screwdriver Size: U Type: M1.7mm*50mm, M2.0mm*50mm, M2.3mm*50m, M2.6mm*50mm Y Type: Y3.0mm*50mm, Y4.0mm*50mm, Y5.0mm*50mm, Y6.0mm*50mm Triangle Type: M1.8mm*50mm, M2.0mm*50mm, M2.3mm*50mm, M3.0mm*50mm Handle Length: 80mm Screwdriver Length: 130mm Package Size: 21 * 11 * 3cm / 8.3 * 4.3 * 1.2in Package Weight: U Type 170g, Y Type 154g, Triangle Type 143g Package List: 4 * Screwdriver