Upgraded:High quality non-slip aluminum alloy handle, steel bottom cover, drive head made of high speed steel and titanium alloy precision machining, hardness over 60, resistant to flaking and breaking, no rust, durable, the best choice for advanced RCmodel friends. High quality:Good repair tool for RC crawler car boat drone quadcopter model mobile phone repair tool. The drive head is made of high speed steel, resistant to stripping and breaking, not rusty, durable, not easy to damage, designed for long lasting performance. Ergonomic handle design: Handle design - high quality non-slip aluminium alloy handle. The ergonomic and non-slip design of the handle provides a comfortable grip. The handle is wide enough to give you the most comfort and maximum torque. Each handle is clearly marked with dimensions for easy identification and use Application:Hexagonal screwdriver set for disassembling DJI Genie 3/4 universal models, RC helicopters, RC quadcopters, RC cars, RC boats, multi-axis FPV racing drones, robots, etc. What you get 4pcs hexagonal screwdriver set (hexagonal screwdriver 1.5mm 2.0mm 2.5mm 3.0mm rc tool kit) If you have any questions, please email the after-sales service promptly.