In this variety of diamond dressers, a pair of diamonds is mounted on the tool. Primarily used for replacing single point diamond dressers, cluster type diamond dressers help in reducing the load of the diamond by bringing the pair of diamonds in contact with the wheel. These diamond dressers consist of a cluster of a variety of small diamonds arranged in a definite pattern for use with harder and coarser wheels. Cluster type diamond dressers comprise small diamond sets of 3, 5, 7, 9 and 13 diamonds forming a cluster.