This miter gauge is the most refined model yet in the Miter 1000 series. The HD stands for High Definition, because the precision angle indexing teeth are laser cut in solid steel to lock in positive angle stops every 1° over a 180° range, with special stops at 22-1/2°. A stainless steel vernier cursor delivers an incredible 1/10th° resolution between fixed steps. This Miter Fence telescopes from 18" to a full 31" length and features a front T-slot for adding a wooden zero-clearance sub fence. The Miter 1000HD's Flip Shop Stop is equipped with Incra's patented incremental positioning racks for incredible cut-length accuracy and 100% day-to-day repeatability. Six expansion disks adjust both sides of the bar for zero side play, low-friction travel on all table saws with standard miter gauge channels, including Delta, Craftsman, imports, etc. An excellent fit in the channel directly transfers the incredible accuracy directly to your project. The adjustable miter bar will fit square-sided miter slots measuring 3/4" wide, 3/8" deep, and with or without a 15/16" T-slot at the bottom. The miter bar's adjustment range accommodates actual slot widths between 0.740" and 0.765". With this miter gauge, you will have a tool that will improve the quality of any project in your shop. www.eagleamerica.com