1、Two-way sliding rails, smooth and not stuck, before and after the left and right can be arbitrary push and pull, easy and convenient. 2、Steel bearings, built-in precise beads, the whole process of silence, the surface material wear-resistant and not easy to rust. 3、With self-centered triangular positioning point, high accuracy, efficient slotting. 4、Equipped with two independent support bracket, closely fit, precise and quick. 5、Left and right adjusting screws to adjust the slotting length, easy to adjust. 6、Up and down height adjusting screws, up and down adjustment according to the thickness of wood. 7、Anti-slip handle, one button to operate, release to stops. 8、With lock protective function, just press the lock button to lock. 9、The anti-dust transparent baffle can avoids unintended hurts by accidentally touching the blade, and will not block your sight when operating. This grooving machine rack has two-way sliding rails, smooth and not stuck, before and after the left and right can be arbitrary push and pull, easy and convenient. Left and right adjusting screws to adjust the slotting length, easy to adjust. Up and down height adjusting screws,  up and down adjustment according to the thickness of wood. Suitable for 63-68mm trimmer. Features: Two-way sliding rails, smooth and not stuck, before and after the left and right can be arbitrary push and pull, easy and convenient. Steel bearings, built-in precise beads, the whole process of silence, the surface material wear-resistant and not easy to rust. With self-centered triangular positioning point, high accuracy, efficient slotting. Equipped with two independent support bracket, closely fit, precise and quick. Left and right adjusting screws to adjust the slotting length, easy to adjust. Up and down height adjusting screws,  up and down adjustment according to the thickness of wood. Anti-slip handle, one button to operate, release to stops. With lock protective function, just press the lock button to lock. The anti-dust transparent baffle can avoids unintended hurts by accidentally touching the blade, and will not block your sight when operating. Specifications: Name: Grooving Machine Rack Material: nylon Working thickness: 16-20mm / 0.63-0.79in Max grooving length: 55mm / 2.17in Item weight: 1740g / 3.84lb Package size: 260 * 250 * 170mm / 10.24 * 9.84 * 6.69in Package weight: 1900g / 4.19lb Packing List: 1 * Grooving Machine Rack 1 * Grooving Machine Rack