Ceratizit 7870463233 Indexable Boring Bars; Minimum Bore Diameter (Decimal Inch): 2.5620 ; Maximum Bore Depth (Decimal Inch): 4.0000 ; Maximum Bore Depth (Inch): 4 ; Toolholder Style: MCLNR ; Tool Material: Steel ; Shank Diameter (Decimal Inch): 2.00