Kalttoy Screwdriver Set, Laptop Screwdriver Kit Kit For Computer, Driver Tool Repair Bit Set

Kalttoy

H4 (4mm The is simple and the high efficiency Hexagonal inner for reinforcement, no slippage It adopts steel with high hardness resistant, and strong torque Bits adopt hardness steel and processed by multiple machine tools, and the hardness is about HRC60 after high temperature, Manufacturer: Kalttoy