The Carmex Carbide Groove Mill with Internal Coolant is a precision grooving tool designed for machinists who need clean internal and external grooves with dependable performance. Built from solid carbide and equipped with an integrated internal coolant system, it delivers durability and consistent results across a variety of materials. Material: Solid carbide construction for exceptional rigidity, wear resistance, and long tool life in demanding applications. Groove diameter: 4 mm groove diameter for compact grooves and tight radii. Groove width: 0.5 mm groove width to achieve precise, fine grooves. Flute design: 3–5 spiral flutes that provide strong cutting action and efficient chip evacuation. Internal coolant: Internal coolant through the flutes enables effective cooling and chip removal, extending tool life in challenging conditions. Grooving versatility: Suitable for both internal and external grooving with a single, versatile tool. Precision geometry: Precisely engineered groove geometry delivers clean, accurate grooves and intricate profiles. Designed to perform across a variety of materials, this groove mill minimizes finishing passes and reduces tool wear through efficient heat management. The combination of solid carbide rigidity, internal coolant, and a refined flute geometry translates to consistent groove quality, higher productivity, and reliable performance in tight tolerances and challenging setups.