Recently, rollers (profiling discs) have been widely used. When using them, the straightening process is based on the single-point contact of the roller and the abrasive wheel.

The rollers are used on CNC equipment.

The fundamental advantage of this type of tool is a fairly wide range of high-precision profiles obtained by single-roller machining, obtaining high-quality surfaces of machined parts and significantly higher durability compared to a single-chip tool.