Introducing the STRIX T-9 hand tool! This compact wrench gives you almost everything you need for the fasteners on your multirotor. From the factory, the tools are set at 8.0mm for M5 prop nuts, 5.5 mm for M3 ny-lock nuts, 2.0mm hex, and 1.5mm hex. If you need 2.5, simply use the 2.0mm tool to loosen the set screw, flip the tip over and re-tighten. Rule the Sky™ with STRIX!