Drill holes up to 3X faster than twist drill bits with the Milwaukee 7/8 in. threaded Steel Hawg cutter. This long-lasting cutter features Carbide teeth and an alternating cutting pattern to cut up to a 2 in. hole depth in steel, stainless steel, cast iron or aluminum. The spring-loaded, self-ejecting pin lets you make smoother, more accurate cuts and eject the plug faster. The Steel Hawg cutter works with most electromagnetic drill presses. Use it with arbor 49-57-0030 on Milwaukee's 4262-1 magnetic drill press or arbor 49-57-0010 on Milwaukee's 4292-1 mag press. The 7/8 in. bit diameter has a metric thread size of M18 x 1.5 in. shank. Use the threaded Steel Hawg with a No. 3 Morse taper arbor assembly 49 to 57 - 0010.