Great Planes Prop Reamer 4-Step

Stepped Reamers are for use enlarging the hole in aircraft propellers whilst maintaining centring. Since they cut the material accurately, your propeller will run more concentrically, thus reducing vibration, a major cause of engine/radio wear! It's even possible to remove the handle and mount the cutting bit in a drill press for added precision! Taper Reamers are used primarily for cutting holes in model car body shells, but will work equally well on soft woods and thin sheet metal - the pointed tip means that you don't even need to drill a pilot hole. Drills holes from 3~14mm. Cutting bit can be safely stored in its own handle.