DuraDi Diamond Coated Ball CAD/CAM Carbide, Roland End Mill, 0.6mm, 1/Pk. Designed for use on DWX-51D dry mill, DWX-4, DWX-50, 51D, 52DC, approved for milling Zirconia, Wax, PMMA, and Composite. Lasts 10 times longer than standard carbide tools and is ideally suited for finishing dental prosthetics. Overall length: 50mm, shank diameter: 4mm. Cutter design: 2 flute ball end. 1/pk