Kyocera THD89189 Indexable Insert Drills; Drill Style: DRZ; Drill Diameter (Decimal Inch): 1.8125; Maximum Drill Diameter (Decimal Inch): 1.8125; Drill Diameter (Inch): 1-13/16; Maximum Drill Depth (Inch): 3-5/8; Maximum Drill Depth (Decimal Inch): 3