Accupro 07074115 Indexable High-Feed Face Mills; Cutting Diameter (mm): 63.50 ; Cutting Diameter (Inch): 2-1/2 ; Minimum Cutting Diameter (Decimal Inch): 2.5000 ; Maximum Depth of Cut (Decimal Inch): 0.0394 ; Arbor Hole Diameter (Decimal Inch): 0.750