The Shopsmith Miter Gauge with Protractor provides the necessary support for all cutting, work-guiding, and stabalizing operations while delivering precision results safely. The built-in scale on the protractor reads from 0° to 30° left and right. Adjustable “zeroing” pointer that enables measuring down to 1° increments, with adjustable auto-stops at 0° and 45° in both directions. Large, easy-turn knurled knob locks the guage securely into position. Add the optional Miter Gauge Safety Grip (505625) for maximun workpiece control.