Big Horn's 36-inch small aluminum t-track is the ideal way to add t-track to a home built band saw, drill press, or router table. It measures 3/4-inch by 1/2-inch OD. (Bolt not included). Can be used with Big Horn hex bolt mounted feather board 19132. Universal T-Track is the ultimate solution to optimize your workbenches and jigs by allowing you the efficient means to securely and effectively grip your work material in a wide variety of worktable platforms and configurations.