model 20 disc grinder: three versatile versions available in popular 3 phase, 60 hertz electronic options model 20 : disc speed fixed at 1725 rpm model 20b : fixed speed with a 10 ft. lb. mechanical disc brake model 20vb ......model 20 disc grinder: three versatile versions available in popular 3 phase, 60 hertz electronic options model 20 : disc speed fixed at 1725 rpm model 20b : fixed speed with a 10 ft. lb. mechanical disc brake model 20vb : continuously adjustable from 200 to 1725 rpm with an adjustable electronic disc brake. all model 20 disc grinders are available with magnetic starter options. the model 20vb speed controller includes all control and overload features of a standard magnetic starter in addition to the solid state frequency controller. - precise enough for pattern makers - the ideal tool to shape, flat grind, contour metal, wood and plastic - rapidly grinds and deburrs castings or fabricated parts model 12 disc grinder: - rigid cast aluminum construction - cast iron table - precision billet aluminum disc - bench or pedestal mounted - forward/reversing switch - easy disc change with unique swing away feature 1 1/2 hp, 1725 rpm baldor motor
