38mm CNC Aluminum prop for 4mm propeller shaft by TP Power.
This propeller fits 4mm smooth shafts that have a drive dog and is held on by a nut. See picture two.
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.
1.4 pitch ratio
2.1" (53.35mm) total pitch
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