The Incra IMS2SE 25-1/2-inch GuideLock Special Edition Miter Slider Bar is a new product that combines the versatility of the INCRA Build-It products with the unique performance and feel of the adjustable GlideLOCK miter bar used on INCRA Miter Gauges.The IMS2SE steel bar is more rigid than any wooden or plastic runner, and it"s not susceptible to changes in humidity or temperature. Miter Slider SE bars are drilled with two separate bolt patterns: (4) #10-24 holes match perfectly with the INCRA Build-It Panels, and there’s a second set of (3) 1/4-inch 20 holes evenly spaced along the length to accept knobs and other fasteners commonly used when building jigs and fixtures.Long-wearing Nylon GlideLOCK adjusting discs provide a precise fit in the miter slot of most table saws, router tables, and band saws, and the discs also give the bars a smooth, low-friction travel. The 25.5-inch bar has three pairs of discs. It also includes removable T-slot retaining clips for BOTH ends of the bar for superior stability of larger jigs. The Miter Slider SE is compatible with all INCRA Build-It Panels, and will fit square-sided miter slots approximately 3/4-inch wide, 3/8-inch deep, and with or without a 15/16-inch wide T-slot at the bottom. The GlideLOCK adjustment will accommodate slots measuring 0.740-inch to 0.765-inch in actual width.The Miter Slider SE is not recommended for stationary jigs that must be locked into position within a miter slot. The standard aluminum Miter Slider (INCRA model numbers IMS1 and IMS2, sold separately) is the best choice for those applications.