The overall tungsten steel drill bit is suitable for use on the machining center of the advanced generation. The overall tungsten steel drill bit is made of fine-grained tungsten steel material. In order to delay the service life, TiAlN coating processing is also carried out. The specially designed geometric edge shape enables the drill bit to have a self-centering function. When drilling large workpiece materials With excellent chip control and chip removal function. The self-centering function and strict manufacturing precision of the drill can ensure the drilling quality of the hole, and there is no need for subsequent finishing after drilling.

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