This useful attachment is easily added to the Pro Hub Tool (17078, sold separately) allowing the derby car builder to correct flaws in the outer wheel hub. This improves wheel-hub-to-axle-head contact which improves car's tracking. Improved tracking means more speed! Shaver ensures accurate rotation by squaring the outer wheel hub to the wheel bore for proper mounting on the Pro Wheel Mandrel (also sold separately).
For an easy-to-follow video on how to use this tool, click here.