Ceratizit 7871920606 Indexable Boring Bars; Minimum Bore Diameter (Decimal Inch): 0.5000 ; Minimum Bore Diameter (Inch): 1/2 ; Maximum Bore Depth (Decimal Inch): 0.8300 ; Toolholder Style: SCLCL ; Tool Material: Steel ; Shank Diameter (Decimal Inch):