OSG 52504031 Indexable Insert Drills; Drill Style: P4D; Maximum Drill Diameter (Decimal Inch): 0.7188; Maximum Drill Depth (Inch): 2-7/8; Maximum Drill Depth (Decimal Inch): 2.8750; Shank Type: Flatted; Shank Diameter (Inch): 1; Shank Diameter (Decim