Spiral End Mill Carbide 3.175/4 mm Aluminium Cutting CNC Router Bit Single Flute

It prevents sticking of the knife and makes cutting smoother. Material: tungsten steel. Type: Single-flute end mill Z=1 (number of tools). (2) Tungsten steel material. Precision grinding process, grinding a precise spiral edge angle, processing effect is smooth and burr-free.

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