Safety, accuracy and repeatability are the hallmarks of this heavy-duty tenoning jig. Designed to fit any table saw with a 3/4" x 3/8" miter groove, this jig will hold your stock in precise position. The adjustable back stop will support stock from 0 degrees to 45 degrees. The width of the cut is controlled with a fine-threaded adjustment knob. Constructed of cast iron and steel.