EXPERT PRO CBN bars with a grain size of 285 GRIT | 63/50 µm on sharpening blanks are a high-quality tool designed specifically for effective sharpening of cutting edges with especially hard metals.

Expert PRO in the name indicates that it is a monolayer base on a polyamide (organic) bond with a thickness of 3 mm. The bar has dimensions of 150*25*3 mm, glued to an aluminum blank of 160*25*4 mm with laser engraving indicating the grain size in various designation systems.

Expert PRO CBN - experts advise choosing CBN for its outstanding qualities in sharpening hard steels, in particular with a high carbon content and stainless steels. CBN itself (cubic boron nitride) is a very hard material, compared to diamond and is widely used for sharpening various types of tools. Diamond and CBN will make an equally perfect edge when sharpening, but CBN will do it faster.

Features of this bar model:
- fast grinding of metal (allows you to do the job in a few movements).
- increases the accuracy of tool processing.
- high concentration of diamond powder for high cutting ability and productivity.
- not brittle, does not crack when dropped or hit.
- retains its dimensions throughout its service life.
- immediately ready for work and does not require alignment.

The uniqueness of diamond and CBN bars is that they practically do not dull, but become unusable from clogging, clogging of the abrasive with alloyed and viscous steels, therefore we recommend using them with suspensions, oils and washing with soap and water.