OSG 52504045 Indexable Insert Drills; Drill Style: P4D; Maximum Drill Diameter (Decimal Inch): 1.0313; Maximum Drill Depth (Inch): 4-1/8; Maximum Drill Depth (Decimal Inch): 4.1250; Shank Type: Flatted; Shank Diameter (Inch): 1-1/4; Shank Diameter (D