Quick view Add to Cart Great Planes Collet Cone Adapter 3.0mm-5mm Prop Shaft GPMQ4988 $13.50 inc GST This is the Great Planes Electrifly Collet Cone Adapter 3.0mm-5mm. Key Features: Aluminum construction, silver in color Mounts on electric motors with a 3mm shaft and adapts them to a 5mm diameter prop shaft Cone shaped spinner nut adds good... Compare