Abstract: A twist drill comprising a shank section at a top of the drill and a body section at a bottom of the drill, the body section having two or more flutes which spiral downwardly in a first direction and terminate proximate a point, the drill having cutting lips formed by the flutes and operatively arranged to cut material when the drill is rotated in a second direction opposite that of the orientation of the spiral flutes.

Abstract: A card head for supplying pile fibers to a knitting machine is disclosed herein along with a method for using same. Precarded, pre cut fibers in sliver form are presented to a fluted roll in proximity to a highly polished nose guide. Sliver is fed therethrough to a clothed main cylinder rotating at a higher speed than the fluted roll to separate cut fibers from the sliver. Flats or the like are secured around a portion of the main cylinder and cooperate with the main cylinder in proper alignment of fibers floating thereon. A doffer roll is positioned adjacent the end of the flats, barely out of contact with the card clothing and rotating at a higher speed than the main cylinder. Teeth on the doffer thus remove the fibers from the main cylinder and properly present same to knitting needles passing thereacross. The card head is provided with cover plates to control air flow therethrough which assists in floating of the fibers and proper operation thereof.