Kyocera OTM86280 Indexable Insert Drills; Drill Style: DR; Maximum Drill Diameter (mm): 49.00; Drill Diameter (mm): 49.00; Maximum Drill Depth (mm): 147.07; Shank Type: Straight-Cylindrical; Shank Diameter (Inch): 1-1/2; Shank Diameter (Decimal Inch)