ShareGoo H1.5mm 2.0mm 2.5mm 3.0mm Handle Allen Hex Screwdrivers Key Driver Tool Kit for RC Car Truck Helicopter Boat Ideal for models of cars,truck,helicopters, FPV,airplanes and more.Also can be a home essential tool. Everything you need to repair your favourite toys,for example,used for HPI HSP Traxxas Losi Axial Kyosho Tamiya Car Truck,DIY Helicopter Drone Material: durable hard aluminum alloy and steel.Heavy duty and resistant to stripping & breaking. Total length: 195mm / Diameter of handle: 18mm / Length of handle: 90mm Pack of 4,(1.5mm 2.0mm 2.5mm 3.0mm)*1