Diamond dresser expose the fresh grain and returns the sharpness to a grinding wheel. It can renew the cutting action of the grinding wheel, which is also called as "truing".
It is important to use a good quality diamond dresser. A good quality diamond dresser offers stability dressing to the grinding wheel.
There are four shapes available: pyramid, cone, plane, and wedge.
Forming dressers with PCD (polycrystalline diamond), instead of single-crystal diamond, have less dispersion over their service lives and show stable performance.