OSG 7803311 Indexable Insert Drills; Drill Style: P4D; Maximum Drill Diameter (mm): 12.00; Maximum Drill Depth (mm): 48.00; Shank Type: Flatted; Shank Diameter (Inch): 20; Shank Diameter (mm): 20.00; Number of Drill Inserts: 2; Cutting Direction: Rig