Extra-large spindle bearings "6 PLUS 6" and "VS6" spindle and spindle pulley are supported by four over-sized, pre-loaded, lubrcated-for-life ball bearings. Massive quill is a full 2" diameter. "VS6" has the same excellent construction, PLUS an extra bearing below the spindle pulley. This fine combination of features assures freedom from chatter, long, maintenance-free life and maximum pressure at the drill point. Six speeds offer unbelievably wide range of speeds with a low-cost 1725 rpm motor- 425, 600, 1100, 2050, 3900 and 5500 rpm- 11.8 to 1 speed ratio.