0.495 0.150 Micro 100 QFR-236-12 Quick Change Full Radius Grooving Tool Minimum Bore Diameter Projection 3.81 mm 12.7 mm 6.00 mm 19.1 mm Groove Width 2.5 Solid Carbide Tool 12.6 mm Shank Diameter Maximum Bore Depth 0.5000 0.236 0.750