Features 1、7 Angles Design: Designed 7 angles, each with 2 holes distributed at different radius positions, 7 (14)°, 10 (20)°, 15 (30)°, 20 (40)°, 22.5 (45)°, 25 (50)°, 30 (60)°, with precise control to grind it to a perfect tungsten tip angle. 2、Applicable Size: This tungsten electrode sharpener is mainly used for cutting and sharpening, with a tungsten needle size of 040, suitable for most 3/4‑12 thread rotating tools, and has good compatibility. 3、Accurate Alignment: All holes are designed to have the same height as the grinding wheel, the grinding wheel plane can be easily and accurately aligned with the grinding position, no need for frequent height setting. 4、Included Parts: This grinder is equipped with a small bone cutting tip, 5 grinding wheels, and 2 upgraded CNC mandrels, which have good hardness, wear resistance, and impact resistance, low wear and tear. 5、Applicable Fields: This tungsten electrode sharpener kit is suitable for industrial welding, jewelry making, and other fine industries, with a simple structure, convenient operation, greatly saves time and energy. Specification Item Type: Welding Electrode Sharpener Material: Aluminum Alloy, Tungsten Steel Application: Fits most 3/4-12 threaded rotary tools Package List 1 x Electrode Sharpener 5 x Grinding Wheels 2 x Connecting Rods