The Universal 18" Track Attachment is for use with the Magswitch Work holding System. Mounts to the Universal Base and Mag Jigs (each sold separately). Unlike any other Track wall on the market today, the Magswitch Track wall is truly universal. It accommodates all hardware on the market. Make your own Jigs, fixtures, stops, fences, zero clearance fences and more! Mounts to miter gauges and fences as well. Accepts all standard mounting hardware! One side accepts all standard T bolts and all ¼” hex. The other side accepts all standard T bolts, all 5/16” and Kreg clamps. Includes micro adjustable brackets for fine tuning to 90 degrees. Features advantages of Magswitch including fast, strong set up anywhere on a steel table or cast Iron fence. Comes in 18” and 36” lengths to accommodate small and large tables.