Kyocera THD12017 Indexable Insert Drills; Drill Style: DRV; Drill Diameter (Decimal Inch): 1.6250; Maximum Drill Diameter (Decimal Inch): 1.6250; Drill Diameter (Inch): 1-5/8; Maximum Drill Depth (Inch): 8-1/8; Maximum Drill Depth (Decimal Inch): 8.1