Standard Pack = 1 piece(s). Coating = TiCN ; Diameter Fractional Equivalent = 2-1/16 ; Diameter inch = 2.0625 ; Diameter mm = 52.39 ; Grade = High Speed Steel ; Locating Area inch = 1-1/4 ; Series = C ; Thickness inch = 5/16 ; Tool Reference Length inch = 1-9/32 ; Type of Product = Replaceable Drill Insert ;