Widia 5578307 Drill Bodies; Maximum Drill Depth: 1.9920 in; Drill Depth by Diameter Ratio: 3xD; Maximum Depth of Cut (Decimal Inch): 1.9920; Shank Type: Weldon Shank; Shank Diameter (Inch): 3/4; Shank Diameter (Decimal Inch): 0.7500; Cutting Directio