"" Perfect screwdriver set including a 4pcs screwdriver without different sizes. Suitable for repairing televisions, refrigerators, electric fans, household appliances and other maintenance appliances. features: Multifunction screwdriver set, including 4 pieces of screwdrivers to meet different demands. Made of CRV 6150 # with quench forging, its hardness can reach HRC42-48, guaranteed for long-term use. Type U screwdrivers are mainly used to disassemble Bull sockets. Type Y screwdrivers are mainly used for certain brands of keyboards and mouse games, for removing boxing pods and for demolishing humidifiers and other devices. Triangle type screwdrivers are mainly used to repair household appliances from the PHILIPS, FLYCO brand, etc. Characteristics: Type: U Type / Y Type / Triangle Type (optional) Color: blue + black Material: Chrome vanadium steel PP + (CR-V 45 #) Hardness: HRC42-48 Type: Combined screwdriver set Screwdriver size: U Type: M1.7mm * 50mm, M2.0mm * 50mm, M2.3mm * 50m,