Ceratizit 7872121626 Indexable Boring Bars; Minimum Bore Diameter (Decimal Inch): 1.5000 ; Minimum Bore Diameter (Inch): 1-1/2 ; Maximum Bore Depth (Decimal Inch): 1.0000 ; Maximum Bore Depth (Inch): 1 ; Toolholder Style: SDUCL ; Tool Material: Steel