Router Table Fence Aluminum Multi T-Track Saw Profile Fence T-Slot Connector. Miter track fence length: 40cm(15.75inch), 50cm(19.7inch), 60cm(23.6inch), 80cm(31.5inch). Function? Having a standard miter track combined with a mini t track allows you to use multiple jigs and fixtures at once or use for quick and easy change-outs. High Quality? Made of durable aluminium alloy material, which is durable, wear resistance, weather resistance and corrosion resistance. Size? T-slot miter track length is about 40cm(15.75inch), 50cm(19.7inch), 60cm(23.6inch), 80cm(31.5inch). The “T” slot accepts standard t-bars that won’t lift out of the track. Woodworking Tool? T-bars are excellent for fixtures that need to secured into the track for stationary purposes like featherboards or hold-downs. Application? Can be used for fences and different of woodworking projects like CNC, table saw, router table, etc.