This Steel Hawg® Cutter incorporates the shank into the cutter itself, no separate arbor is necessary. This style of Steel Hawg® Cutter is available only in 11/16 inch and 13/16 inch diameters. The maximum cutting depth is 1/2 inch. Can be used with any Milwaukee Magnetic Drill Stand with three jawed chuck. 13/16 inch diameter.FEATURES: 13/16 in. bit diameter. 1/2 in. shank with 3 flats. 1/2 in. cutting depth