HIGH QUALITY MATERIALS: The Hex Socket Screw Drivers Wrench handles are made of high quality aluminum alloy, well processed by precision CNC will provide long service time.
4 DIFFERENT SIZE: This set of tools contains 4 hex socket screw drivers wrench in different sizes of 4.0mm(M2), 5.5mm(M3), 7.0mm(M4), 8.0mm(M5) that meet your need.
ATTRACTIVE & DURABLE: High speed steel driver sockets have brushed finishing surface and have resistant to rust strong head which are more durable than common bits.
LIGHTWEIGHT & COMFORTABLE: Handle is lightweight and ensures a comfortable used. Hexagon nut can be widely used for repairing or assembling and removed for daily Making manual and RC Models Airplane Quadcopter FPV drones,HSP Tamiya Yokomo 3racing Traxxas cars