Features: Made of premium aluminum alloy material, high strength, durable in use. Ideal for shop built tables for routers, band saws, drill presses and more. The T-bar slides smoothly into the miter track or miter T slot on your table saw, band saw or shaper Use the T-bar to build all types of jigs, fixtures or sliding sleds for your shop. Solid, durable extruded anodized aluminum maximizes T-track efficacy, machining and accuracy. Specification: Material: Aluminum alloy Treatment: surface anodizing Model: 800mm/31.5in, 1000mm/39.4in, 1220mm/48in (Optional) Fixed hole number: 800mm: 5pcs 1000mm: 6pcs 1220mm: 7pcs Fixed hole spacing (mm): 800mm:180 1000mm:184 1220mm:190 Number of screws: 800mm: 6pcs 1000mm: 7pcs 1220mm: 8pcs Package List: 1 x Slide Slab with Stainless Steel Screws