1.4.0/5.5/7.0/8.0mm Hex 4pcs Screw include.

2.Used for disassembling Hex Screw in helicopter and RC car.

3.It work with almost all Drone, quadcopter and RC car.

4.Hex Nut Drivers —— Used for disassembling RC helicopters, airplanes, cars, boats, particularly 450 Helicopters/ESKY CP V2 King 3

5.Heavy duty steel tips —— Made by Aluminum alloy + Steel material,Resistant to stripping breaking