Woodpeckers DPTRACK48 - Dual Purpose Track 48in.. T-Tracks are one of the most useful components available for building many different shop aids. They're very adaptable to any jig where solid clamping and straight tracking are needed. Woodpeckers new DP Track (Dual Purpose) takes these advantages a step further. It's configured with (2) slots on one side and (1) on the other. All (3) slots are directly compatible with any 1/4in. hex head bolt or nut. This configuration allows for installation with bolts, virtually eliminating the possibility of pull-out. Installation is simple; just drop a hex head bolt into a hole and attach. It's that simple. By attaching track in this manner, you get an extremely durable installation making pull-out virtually impossible. A variety of very useful clamping fixtures can be built by embedding DP Track into a horizontal surface. DP Track measures 1-3/4 x 1/2. Clear satin anodized.