Ceratizit 7871032434 Indexable Boring Bars; Minimum Bore Diameter (Decimal Inch): 1.7800 ; Maximum Bore Depth (Decimal Inch): 6.0000 ; Maximum Bore Depth (Inch): 6 ; Toolholder Style: MTFNR ; Tool Material: Steel ; Shank Diameter (Decimal Inch): 1.50