SST – Saw Gauge Calibrator – for Calibrating Saw Blades, Fences, & Jigs – Precise & Accurate Alignment – ½ In. Precision Spring-aligned Miter Slot Insert, Proprietary Dovetail Lock Design. 8.07 x 5.94 x 1.46 inches. ENGINEERED FOR PRECISION – Stupid Simple Tools’ Saw Gauge Calibrator ensures precise alignment and accuracy of your saw blades, …