They come untagged and the box doesn't say what grit they are so I had to compare them to 12 others that arrived at the same time. They work great with my adapter. https://www.amazon.com/gp/product/B08L5VKDRK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 for my Black and Decker RTX which I have attached a Dremel flex shaft to (https://www.amazon. com/ gp/product/B0000302Y8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) I use them for my polymer clay and UV resin crafts.
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