.HSS Annular Cutter, 13/16" D, For 2" Depth of Cut, 6 Flutes x 3/4" Sh D, 2 Shank Flats tmx annular cutter has a 3/4" shank with two flats and is interchangeable with other standard hole cutting systems cutter design eliminates the need for multi-step drilling High speed steel tmx annular cutters .