The Carmex Carbide Groove Mill With Internal Coolant is a precision solid carbide tool built for accurate internal and external grooving across a variety of materials. Designed for machinists and shops that demand clean grooves, reliable performance, and longer tool life. Diameter x Groove Width: 6 mm diameter with a 1.00 mm groove width for precise, narrow-groove applications. Material: Solid carbide construction delivers exceptional rigidity, wear resistance, and longevity under demanding cutting conditions. Internal Coolant: Integrated coolant channels run through the flutes, providing efficient chip evacuation and cooling for steadier cuts and extended tool life. Flute Configuration: 3–5 spiral flutes deliver smooth chip control, stable cutting action, and a fine surface finish. Groove Geometry: Precisely engineered geometry enables clean, accurate grooves and supports intricate design profiles. Internal & External Grooving: Versatile tool capable of performing both internal and external grooving with a single instrument, reducing tool changes. Minimum Grooving Diameter: Supports grooving down to 4 mm diameter, enabling small, detailed features. This groove mill is ideal for engineers and machinists who create precision grooves, seals, and profiles in challenging materials. The internal coolant and sturdy carbide design help maintain edge integrity, minimize built-up edge, and sustain consistent performance even in tough jobs. Use it to achieve accurate groove widths, smooth finishes, and reliable repeatability in manufacturing and repair environments, with fewer tool changes and less downtime.