100% Satisfaction Satisfaction Guaranteed. HD-MG21 Precision Miter Gauge with Extended Fence and Micro Adjustable Flip Stop. The effective reference data is 480mm without extension, and the reference data after extension is 910mm. High Precision Fine Turning. High Precision Fine Turning, with a minimum adjustment accuracy of 0. HONGDUI HD-MG21 Precision Miter Gauge For Table Saw …