Hello router`-beginner - with the router bit set - Superior you can not only super care for your natural nails, but also still super fast your gel, acrylic gel or acrylic modeling abtragen.In the Burr Bit Set - Superior you will find three bits for removing gel, acrylic gel and acrylic and seven bits to work on your natural nail and cuticle.The Burr Bit Set - Superior includes:- Diamond Bit - Ball small - fine- Diamond Bit - Ball medium - medium- Diamond Bit - Pear small - coarse- Diamond bit - pear - coarse- Diamond bit - cone long - very fine- Diamond bit - cylinder rounded - coarse- Tungsten carbide coated bit - pear - coarse- Tungsten carbide coated bit - pear small - coarse- Tungsten carbide coated bit - cone - coarse- Rotating brush