Drill holes up to 3X faster than twist drill bits with the Milwaukee® 3-1/2" Threaded Steel Hawg® Cutter. This long-lasting cutter features carbide teeth and an alternating cutting pattern to cut up to a 2" 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 3-1/2" bit diameter has a metric thread size of M18 x 1.5" shank. Use the Threaded Steel Hawg with a No. 3 Morse Taper Arbor Assembly 49-57-0010.