Polishing your Pinewood Derby car axles is key to creating a super fast car.

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Axles right out of the box often have burrs and imperfections that cause unwanted friction on your car's wheels. Follow the steps in this video to smooth out your axles and give your car every advantage in a Pinewood Derby race.

You'll need:
- Raw axles
- Small file
- 1/4 inch strips of sandpaper in various grits
- Water
- Safety glasses
- Drill

Check out the video to learn more.