The core selection of coated double-edged chamfering tools is primarily based on three key factors: workpiece material, chamfering application, and coating type, suitable for most CNC precision chamfering and deburring processes. Blade type is prioritized into unidirectional and bidirectional: single-sided chamfering, point milling, and V-groove cutting favor unidirectional double-edged tools for smooth chip removal and strong versatility; thin plates and sheet metal require double-sided deburring, directly selecting bidirectional double-edged tools to eliminate the need for flipping, significantly improving processing efficiency.

    The preferred angle is 90° for universal applications, suitable for most deburring and chamfering operations. The 60° angle adapts to precision small holes, while the 120° angle is primarily used for chamfering large surfaces. Coatings are selected based on requirements: TiAlN gold coating for processing carbon steel, stainless steel, and common mold steel offers high cost-effectiveness and heat resistance; AlCrN black coating for heat-treated high-hardness steel provides wear resistance, impact resistance, and extended lifespan; specialized DLC coating for aluminum, copper, and other non-ferrous metals prevents tool adhesion and ensures smooth, deburr-free workpiece finishes. The double-edge structure reduces cutting resistance and minimizes tool vibration, balancing precision and efficiency, making it the preferred tool for batch precision machining.