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Sizes and Prices T-track is available in lengths from 1 ft. And averages about $4.50 per lineal foot. It is usually sold in 1- or 2-ft. Increments, but some brands can be special ordered to a specific length. Most T-tracks are approximately 3/4 in. Wide with a thickness of either 3/8 or 1/2 in. Micro-fine guide holes and slots at every 1/16', 1/32' and 1/64' scale position instantly locate your sharp pencil or scribe at the exact measurement with zero uncertainty and no eye strain! The Metric versions include marking holes and slots at every 1mm, 1/2mm and 1/4mm. Our Professional T-Rules even offer marking holes every 1/100'. In this example, the T-Slot Block being used to hold mulitple extrud-ed aluminum frames. The machine table shown is a small 34 X 16 size table. The extruded aluminum is 20mm X 20mm X 762mm. On the T-Slot Block, work stops, and clamps are pre positioned. Remove the work pieces and the T-Slot Block can be removed from. These 36' plastic T-track tape measure inserts fit any universal T-Track to give you accurate measurements along your fence in increments of 1/16'. Use them for fast, foolproof adjustments of your fence stops or for general measuring. Ideal for use with all Universal T-Tracks, Multi Tracks, and Double T-Track Fence Caps. T-slot sensors are 24VDC and available in PNP and NPN output transistor logic with NO (normally open) or NC (normally closed) configuration. Sensors and mating cordsets meet NEMA 1, 3, 4, 6P and IEC IP67 ratings. Macron T-slot Sensors can provide users with limit, position or output signaling back to a control system.