Check the listing for details. Micro 100 BBM-080746G, 8mm x 63mm RH Carbide Boring Bar. Condition: New. Listed at 46.65 USD. Micro 100 BBM-080746G Right Hand Boring Tool, (No Cutting Radius) TiN Coated, Metric Dimensions 7mm Minimum Bore Diameter: 46mm Maximum Bore Depth: 1.75mm Projection: 8mm Shank Diameter: 63mm Overall Length, Solid Carbide Bar, MPN: BBM-080746G, PKG QTY: 1 PC