Carmex Thread Mills Mini Type - For Hard Materials - Metric - M2.2 x 0.45 - MT9Carmex Mini Type Thread Mills are precision solid carbide tools designed to cut internal threads in hardened materials with accuracy and a clean finish. Built for machinists and moldmakers, these compact mills deliver reliable performance in tight spaces and demanding applications. Diameter x Pitch: M2. 2 x 0. 45 Shank: MT9 Material: Solid carbide Hardness Capability: Suitable for hardened materials up to 62 HRc Tool Type: Mini internal thread mill