Ceratizit 7871042434 Indexable Boring Bars; Minimum Bore Diameter (Decimal Inch): 1.7800 ; Maximum Bore Depth (Decimal Inch): 3.0000 ; Maximum Bore Depth (Inch): 3 ; Toolholder Style: MTFNR ; Tool Material: Steel ; Shank Diameter (Decimal Inch): 1.50