The varieties of single point diamond pens include: regular natural angle diamond pens, angled conical diamond pens, and angled quadrangular pyramid diamond pens.

Used for precision dressing of grinding wheels on grinding machines. It can also be applied to the dressing of ordinary grinding wheels. The handle body has diameters of 14, 12, 10, 8, 6, etc. There are levels one, two, and three. The specifications include 0.1Ct-3Ct, etc.

It is a process of hot pressing, sintering, and brazing a complete high-quality natural diamond onto a 45 # steel handle. The diamond's edges and angles are used to precisely adjust the grinding wheel, utilizing the natural diamond's skin hardness and wear resistance.