DALRC Propeller Wrench for Multicopters and other RC Vehicles w/ 12 Red CW 5mm Nyloc Nuts. Material: Aluminum Wrench Color: Black, Nyloc Nut Color: Red Inlcuded: 1x DAL RC Prop Wrench, 12x 5mm CW Nyloc Nuts Works with Motors with 5mm Shaft. DYS, EMAX etc. Most common Shaft Size.