The INCRA Miter Slider SE 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. Miter Slider SE is not recommended for stationary jigs that must be locked into position within a miter slot; choose standard aluminum Miter Slider for these applications. Steel bars are more rigid than wooden or plastic runners and are not susceptible to changes in humidity or temperature.