The taper, flange, and collet pocket are the three main components of a CNC milling tool holder. The taper ensures a precise and tight fit between the holder and the milling machine's spindle, minimizing vibrations and enhancing machining accuracy. The flange provides additional stability and rigidity, preventing any unwanted movement during the cutting process. The collet pocket securely holds the cutting tool, guaranteeing its proper alignment and concentricity.
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