Carmex Thread Mills Carbide Mini Type - Metric - M20 x 2.5 - MT7The Carmex Carbide Mini Type Thread Mill is a high performance threading tool designed for fast, precise thread milling at M20 x 2. 5 with MT7 carbide grade. Built for high speed machining, it delivers dependable internal and external threads with a single tool across a wide range of pitches. Metric threading size: M20 x 2. 5, MT7 carbide grade for robust performance. Carbide with TiAlN multi layer coating: Sub Micron grain with a triple TiAlN coating