Tungsten carbide straight flute reamer is mainly used for reaming holes that have been drilled on the workpiece to improve the processing accuracy of the hole and reduce the surface roughness. It is a tool used for hole finishing and semi-finishing. The machining allowance of such a reamer is generally very small.
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The cutting edge of a straight flute reamer made of high quality tungsten carbide is sharp and smooth, so the processed hole wall is smooth, and the finish can reach Ra0.25. The cutting is smooth, and the chip removal is good. It has good vibration resistance and can maintain the hole precision tolerance up to 1μ. In addition, tungsten carbide straight flute reamer provides better rigidity than high speed steel straight flute reamer. As tungsten carbide is extremely heat resistant so such a reamer can be used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials. Carbide straight flute reamers are the most common and are used in general purpose though-hole applications. They are used for reaming holes without interrupted cuts.
