Specifications:Condition:100% Brand New and High Quality Material: aluminium alloy. Color: As picture show Length: Approx. 450 mm / 17.71 inches, 300 mm / 11.81 inches (optional). Width: approx. 19 mm / 0.748 inches. Thickness: approx. 9.5mm/0.374'' Suitable Screw Size:M6 Screw, Tapping Screw Package weight: 141-226g Package includes: 1 x mitre bar. Note: The retail rails 300, 450, 650 and the rails 450 in the push handle have different mounting holes and are not universal. The three retail Specifications of the rails serve users to modify the pressure plate of the table saw or the flip chip pressure plate, and users can also modify the push handle (but users must hit and type) Features Table saw work: the T nut rail is a mitre bar for table saw woodworking projects with universal mounting holes with thread that can be installed on the table saw. Adjustable slide rails: the mitre bar slider has adjustable stainless steel slide rails for perfect gliding. When adjusted, these rods glide effortlessly in the cutting groove without lateral movement for precise cutting. High quality aluminium alloy: the mitre rail is made of high-quality aluminium alloy material with high strength, corrosion protection, rust protection and durable use. Precise design: the miter saw protractor is beautifully designed, simple and user-friendly and extremely practical. You can adjust the perfect sliding motion in any standard sawtooth groove only with your wrist. Wide application: this sliding sledge for table saw is extremely versatile and can be used in a variety of woodworking applications, increasing the efficiency of your workshop.