Features: Made of high quality aluminum alloy, it is durable and practical. There are three sizes of woodworking slider can be selected to meet your various needs.. The scale is precise and clear, the workmanship is fine, practical and durable, and the service life is long. Light weight, small size and beautiful design are of great help to woodworking. Mainly used as woodworking backing, is a professional technical tool. Specifications: Condition: 100% Brand New Material: Aluminum Alloy Type: 400mm, 500mm, 600mm (Optional) Specification Fixed number of holes (pcs) Length (mm) Fixed hole spacing (mm) Pore diameter (mm) Weight (g) 400mm T-slot Miter 3 400mm/15.7in 220mm/8.7in 5.2mm/0.2in 270g/9.5oz 500mm T-slot Miter 3 500mm/19.7in 160mm/6.3in 5.2mm/0.2in 330g/11.6oz 600mm T-slot Miter 4 600mm/23.6in 173-174-173mm/6.81-6.85-6.81in 5.2mm/0.2in 400g/14.1oz Package list 1: 1 * 400mm T-slot Miter 4 * Screws Or Package list 2: 1 * 500mm T-slot Miter 4 * Screws Or Package list 3: 1 * 600mm T-slot Miter 5 * Screws 1、Made of high quality aluminum alloy, it is durable and practical 2、There are three sizes of woodworking slider can be selected to meet your various needs 3、The scale is precise and clear, the workmanship is fine, practical and durable, and the service life is long 4、Light weight, small size and beautiful design are of great help to woodworking 5、Mainly used as woodworking backing, is a professional technical tool