Alias Double Flute Spiral Bit, CNC Spiral Cutting Bit, Woodworking Spiral End Mill, Tungsten Steel Spiral Cutter Material Solid carbide ultra-fine grain tungsten steel, precision heat treatment and grinding, high hardness, good toughness, high temperature resistance, wear resistance and anti-breaking edge. Surface Color Natural silver tungsten steel color / Black wear-resistant coating Product Features 1. Double spiral groove design, fast chip removal, no clogging under high
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