Review on 💎 High-Quality 6" 150mm Grit 320 Diamond Grinding Disc for Jewelry Tools and Gemstone Glass Ceramics by David West

I was skeptical at first but am completely satisfied. I bought them to work on a slow speed lapping machine I built, similar to the GRS engraver sharpening machine. I use it to sharpen carbide turning tools. So far they have held up very well, the grain seems to be even and I have been very satisfied. I understand they may not last as long as some of the big names in Glendo or GRS. However considering they are under $10 and the Glendo is around $300 plus I think they are worth it! I bought half a dozen of these after trying one. I love her 🤙