A drain cleaner including a cable (50) configured to inserted in a drain, a drum (32) supporting the cable, a motor configured to rotate the drum, and a cable feed control mechanism configured to feed the cable in a linear direction. The cable feed mechanism includes a plurality of feed wedges (108) surrounding the cable, a plurality of rollers (112) supported by the feed wedges, and a collar (120) positioned around at least a portion of the plurality of feed wedges and having a cam surface. Each feed wedge has an inclined surface (152). Movement of the collar relative to the plurality of feed wedges causes the cam surface of the collar to engage the inclined surfaces of the plurality of feed wedges to move the plurality of feed wedges radially inward and into engagement with the cable.