OSG 52504028 Indexable Insert Drills; Drill Style: P4D; Maximum Drill Diameter (Decimal Inch): 0.6406; Maximum Drill Depth (Decimal Inch): 2.5630; Shank Type: Flatted; Shank Diameter (Inch): 3/4; Shank Diameter (Decimal Inch): 0.7500; Number of Drill