(AMMCO #90-9800). Accuturn, Bosch, All Tool, Ammco, Coats, FMC, John Bean, Hennessy, Hunter, Kwikway, Hofmann, Snap-On, Van Norman, etc. Heavy Duty "Spring" Style Rotor Silencer Assembly for dampening harmonic vibrations created during the cuting priocess, the original Ammco number is #909800.
