The T-Tool pinewood car tungsten weight placement tool makes drilling perfectly sized weight holes simple. The drilling tool is engineered to help you achieve the ideal balance and center of gravity necessary for maximum speed without the need for a drill press or complicated measurements. The T-Tool attaches in seconds and can be secured with a standard clamp. It is designed for use with 3/8” or 25/64” drill bits to fit standard sized tungsten derby car weights. It is compatible with wooden car bodies up to 1.75” wide. T-tool is made from durable aluminum and can be used from year to year. Wooden block, drill bit, pinewood car, clamp and tungsten not included. In the event that the tool is tight fitting onto the wooden block, the block can be narrowed slightly using sand paper until the tool does fit. Our products are expertly engineered for speed.