Mattox 115mm Diamond Disc for Sharpening Tungstens

-Sharpen Tungsten electrodes -Sharpen Tungsten carbide saw blades. -Sharpen Dull, broken, blunt drill bits. -Sharpen Wood chisels. -Sharpen SDS bits. Specifications Description:       1 x 115mm 4.5″ Diamond Tungsten Sharpener Grinding disc Outside diameter: 115mm 4.5″ Inner hole:           22.23mm Max RPM:           Safe Tested Load 18500 Description:         150 to 200 Hard Grit Coated Both Sides Material:              Harden Steel Electroplating silicon carbide with Oxide Surface Coating Pressed Metal Steel disc for strength, durability, and less heat Higher rpm speeds to be used on more faster machines. Harder High Qty Long life grit not like cheap discs sold . Both sides of the disc coated for longer life and use . Advanced Diamond technology made to last by a reputable company   https://www.youtube.com/watch?v=CMrjR20I-IU