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Pro-Wheel Mandrel
for Pinewood Derby Wheels

The Pro-Wheel Mandrel is a precision machined tool for holding wheels in the chuck of a drill. Benefits include:
  1. Accurately machined shaft allows for precision use in any drill chuck or Dremel-type tool.

  2. Step-down on shaft allows BSA wheels to be mounted with the 'spokes' facing the drill chuck, simplifying work on the inside edge of the tread.

  3. Knurled thumb screw eliminates the need to use a screwdriver to mount a wheel (a clumsy operation with the standard mandrel).

  4. Beveled thumb screw ensures that the wheel mounts accurately on the mandrel.

  5. Screw can be replaced should it be lost or bent.

The Pro-Wheel Mandrel fits most brands of pinewood derby wheels, however, some wheels are equipped with a wheel bore that is slightly smaller then the mandrel screw. The Pro-Hub tool can be used to ream out the wheel bore so that it fits on the screw.

Caution - Wear eye protection while using this tool.

If using a Dremel-type Tool, use the lowest speed.

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