Carmex Carbide Groove Mill - Full Radius With Internal Coolant - 12mm x R0.90mmMeet the Carmex Carbide Groove Mill a precision tool designed for machinists and fabricators who need clean, repeatable grooves. With a 12 mm cutting diameter and a full radius edge of 0. 90 mm, it delivers smooth groove profiles across a range of materials while preserving tool life through efficient internal cooling. Cutting diameter and radius: 12 mm diameter with a 0. 90 mm full radius edge for consistent groove geometry. Solid carbide