34mm 3 Blade CNC Aluminum prop for 4mm propeller shaft. This propeller fits 4mm smooth shafts that have a drive dog and is held on by a nut. Machine cut to high tolerances for use right out of the box. No need to balance these props. The Magnalium 7075 alloy makes this material upwards of 30% stronger than standard 7075 aluminum. Specs: 34mm diameter 1.4 pitch ratio 1.88" (47.75mm) total pitch
