INCRA Miter Slider SE 25-1/2 in. features all-steel construction, making it more rigid and durable than wooden or plastic runners. Unlike those materials, it is not affected by changes in humidity or temperature, ensuring consistent performance. This slider bar is designed with two separate bolt patterns: four 0-24 holes that ly align with INCRA Build-It Panels, and three 1/4-20 holes spaced evenly along the length to accommodate knobs and fasteners commonly used in jig and fixture building. The long-lasting Nylon GlideLOCK adjusting discs provide a precise fit in the miter slots of most table saws, router tables, and band saws, while also delivering smooth, low-friction movement. The 25.5-inch bar includes three pairs of adjustment points and removable T-slot retaining clips on both ends, enhancing the stability of larger jigs. Compatible with all INCRA Build-It Panels, it fits square-sided miter slots approximately 3/4 inch wide and 3/8 inch deep, with or without a 15/16 inch wide T-slot at the bottom. The GlideLOCK adjustment accommodates slot widths from 0.740 to 0.765 inches. Please note that the Miter Slider SE bars are not for stationary jigs that require locking in position; for those applications, the standard aluminum Miter Slider is preferred. Proudly made in the USA.