February 1, 2018 - The new Apex Machine Group TB 1600 64 in. top / bottom machine processes both the top and bottom surfaces in a single pass with 100 percent uniformity, every square inch of every part is processed exactly the same over 100 percent of the machine width. Can be fitted with flexible abrasive strips, abrasive nylon, a variety of wire products, abrasive flap discs, non-woven / impregnated pads and more.