12 x 22 mm diamond grinding wheels with 2 x 3 mm collets for Dremel rotary tools

[Quantity] 12 x 22 mm diamond cutting discs with high cutting performance, wear resistance, and good impact resistance. [Material] The cutting disc is made of carbon steel, hot-pressed from a diamond powder alloy, making it durable. It is excellent for cutting gemstones, stones, jade, porcelain, ceramics, and epoxy resins. [Design] Eight ventilation holes on the mini disc reduce heat build-up and remove chips. The ultra-thin and round diamond cutting disc allows for fast, consistent, and efficient cutting. [Application] These ultra-thin diamond cutting discs are suitable for creating grooves and flaps. They are specifically designed for rotary tools and are durable. A useful tool for hobbyists, craftspeople, jewelers, goldsmiths, etc.