LEFT HAND STUB DRILL BIT COBALT STEEL 7/16in. X 4-9/16in. FLUTE LENGTH 2-5/8in. - LEFT HAND STUB DRILLS. INDUSTRIAL POLISHED FINISH 135 DEGREE SPLIT POINT. in.STUBBYin. MECHANICS LENGTH DRILL BIT FOR ADDITIONAL STRENGTH. MADE FROM PREMIUM COBALT STEEL.