Available for aluminum oxide and other conventional wheels on grinding machines that are not equipped with rotary dresser, hDD (Hybrid Diamond Dressing) and cDD (Hybrid matrix with CVD diamond inserts) stationary dressing tools do not have to be relapped or returned to manufacturer for repositioning of diamond insert. CVD (Chemical Vapor Deposition) diamond inserts in stationary cDD dressing tools have microcrystalline structure that readily breaks down for continuous self-sharpening.
This story is related to the following:Grinding Wheel Dressers