4 in 1 Metal 1.5/2.0/2.5/3.0mm Allen Hex Key Driver Set,RC Hexagonal Screwdriver Repair Tools for RC Car Quadcopter Helicopter Drone Airplane Boat
They are in different sizes of 1.5mm, 2.0mm, 2.5mm, 3.0mm Hex Screw that meet your need,portable and easy to use and carry.