Steel Dragon Tools 7/8" x 2" High Speed Steel Annular Cutter with 3/4" Weldon Shank Steel Dragon Tools 7/8-inch high-speed steel annular cutter. Bit Size: 7/8 in. Cutting Depth: 2 in. 3/4 in. Weldon Shank Machine-finish hole with no reaming needed when using lubricant.