Ultra-Dex Indexable Boring Bar, Positive, 0.6 in Minimum Bore, 8 in Overall Length, 1/2 in Shank Diameter, Right, SCLCR Toolholder, Insert Compatibility: CCMT 21.51, 80 deg Diamond Insert, 1/4 in Inscribed Circle, MTS-255 Insert Screw, 0.0937 in Insert Thickness, Carbide, Yes Through Coolant