Features 1.Made of premium aluminum alloy material, high strength, durable in use. 2.Ideal for shop built tables for routers, band saws, drill presses and more. 3.The T-bar slides smoothly into the miter track or miter T slot on your table saw, band saw or shaper 4.Use the T-bar to build all types of jigs, fixtures or sliding sleds for your shop. 5.Solid, durable extruded anodized aluminum maximizes T-track efficacy, machining and accuracy. Specification 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: 300mm/11.8in, 400mm/15.7in, 500mm/19.7in (Optional) Fixed hole number: 300mm: 2pcs 400mm: 3pcs 500mm: 3pcs Fixed hole spacing (mm): 300mm:220 500mm:160 600mm:210 Number of screws: 300mm: 3pcs 400mm: 4pcs 500mm: 4pcs Package List: 1 x Slide Slab with Stainless Steel Screws Note: Cooperate with T screw special slot (M6 or M8 special T screw) does not contain, need to buy separately. Package List