Chatter depressing, chip deflecting clamping silencer for Accu-Turn, FMC and many other brake lathes. Used on bench or on-the-car brake lathes of all types, the silencer rides behind the tool bit to meet the vibration and noise where it starts; at the tool itself. Long-life pad material will give you lasting performance. Do not use on Pro-Cut Brake Lathes. OEM Andrews M-3, Accu-Turn 434296, FMC 90198, Performance 8572