Description High Quality Material: Made of plastic and metal, light and convenient, good toughness, will not scratch any material, durable. T-slot rail fixture: Woodworking fixture integrates positioning fixture, fixing fixture, T-rail slider, woodworking table, engraving machine, metal CNC milling machine and dovetail fixture. They are easy to handle, have strong gripping forces and have a wide range of applications. T-screw: High standard, high precision, easy to use, the thread is not easy to slip and deform.The clamping range is up to 500mm. Butterfly Nut: Easy to use, not hurt your hands, easy to use. Suitable for fixing wood and metal workpieces of different heights. t The rail rod solves all problems of rail fixation. Uses: Used in many woodworking or metalworking applications for bevel, gap, seam, wide and acute angle track table woodworking, also suitable for fixing, marking, positioning, scribing, etc. of metal parts.