The 49-57-0939 Milwaukee 15/16'' Quick Change Tang Drive Steel Hawg Cutter is for use in Milwaukee Magnetic Drill Motors 4292-1 or 4297-1. This Arbor adapts Threaded Steel Hawg Cutters to a No. 3 Internal Morse Taper Motor. For best cutting results use Hawg Wash® cutting fluid to keep cutting surface cool and lubricated. Hawg Wash fluid is available in 16 ounce bottles (49-32-0081). One bottle makes one gallon of lubricating solution. Order oil hose(43-75-0010) and hand pump (44-46-0090) separately to distribute cutting fluid during drilling.