Overview: Body Block preparation is the foundation of a FAST Derby Car and the Pro-Body Tool 2 is designed to accurately straighten existing axle slots or create new axle mounting holes. By using only a hand drill and the correct sized #44 drill bit provided, The Pro Body Tool 2 is easy for anyone to use and designed to work on BSA and Pine Car Derby Car kits. The Pro-Body tool will improve the speed of your derby car by: Axle Slot Preparation: For kits with axle slots, the Pro-Body Tool ensures accurate axle positioning by allowing you to drill accurate axle pilot holes into the existing axle slots with a hand drill!. The pilot holes ensure that the axles are mounted square and true on the car. Improved axle mounting accuracy equals greater speed! Axle Hole Drilling: For races which allow axle holes, the Pro-Body tool serves as a guide for drilling accurate axle holes with a hand drill. Again, improved axle mounting accuracy equals greater speed! Raised Wheel Option: The Pro Body Tool 2 has a added hole for accurately drilling a front axle in the raised position and running on 3 wheels for added friction reduction. Axle Hole Re-drilling: For kits with the screw and 3/8″ dowel rod axle system, the Pro-Body Tool (Model 5148) allows you to accurately re-drill the axle pilot holes. When using nail-type axles, the Pro-Axle Press and Pro-Body tool work together to make a well-aligned and smooth rolling car. :