We have had the most complete line of diamond blades available for both the hobbyist and professional,it is mainly used for cutting stones, such as: Jade, Agate, Jasper, Opal, and other Gemstone.Features: high efficiency, long lifetime, and high-qualified performance, etcExtensive testing and field use has gone into our selection of blades for cutting rocks, minerals, gemstones, glass and laboratory specimens. The wide range of sizes in plated, notched rim and continuous rim styles ensures that you will find the perfect blade for your application