 This is an optional AquaCraft GrimRacer 40x53 2-Blade Copper-Beryllium Prop. Giving your boat a new burst of speed is as simple as bolting on a high-quality GrimRacer metal prop! Racer-designed, USA-made GrimRacer Copper-Beryllium props are flex-resistant but not brittle, and feature raised lettering on the hub for easy size identification. Each prop comes in a reusable plastic parts box to protect it from performance-robbing pit box damage.
Features:
- The most accurately cast metal propellers available.
- Ultra-clean casting and true center-bore hubs mean that each prop is near its balance point — right out of the package.
- Material won't crack or shear like plastic — remains sharper longer, with less dulling and chipping, and is safer too!
- Can be fine-tuned with less effort than stainless steel, while holding shape better for balancing, sharpening, and changing pitch.
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