The Build-It Panels are pre-cut and pre-drilled to instantly accept all of the components of the system. With hundreds of thousands of units already in circulation, these tried and true jig and fixture runners have become a workshop staple for the production of sliding and fixed base jigs.īut it’s the NEW INCRA Build-It Panels and T-Slot Panel Connectors that put the punch in this system. The Build-It System begins with INCRA’s Miter Slider adjustable aluminum runners.