Features: Tungsten Electrode Sharpener: excellent for sharpening the tungsten electrode rods, fits most rotary tools with a 3/4-12 thread. Suitable for: it will grind 2 sizes tungsten, 2 angles tips for each size. 4 types holes 1/16" (1.6mm) 15 degrees , 1/16" (1.6mm) 20 degrees , 3/32" (2.4mm) 15 degrees , 3/32" (2.4mm) 20 degrees . 15 degrees is 30 degrees when grinded on tips, 20 degrees is 40 degrees . Each type have 3 holes will grind different circle on diamond wheels, will reduce diamond wheels consumption by 2 times. Diamond Grinding Wheel: wheels in good hardness and wear resistance that are used for grinding TIG welding tungsten electrodes or cutting a wide variety of materials, comes with 10pcs for replacement. Zipper Storage Pouch: for keeping the sharpener and diamond wheels, easy to carry around. Specifications: Shape: Round / Square (Optional) Material: Aluminum Item Size: 60 * 44mm / 2.36 * 1.73in Item Weight: 120g / 4.24oz Package Weight: 184g / 6.50oz Package Size: 11.5 * 6 * 5cm / 4.52 * 2.36 * 1.97in Packing List: 1 * Sharpener 10 * Grinding Wheel 2 * Rod 1 * Storage Pouch