These air grinders have many new features which allow the operator to carry out the re-profiling of the carbide  buttons quickly and efficiently. The Diaroc / Scandia and Super Diaroc tools are inserted in the chuck and moved into contact with the button. The air grinder is so designed to allow the cooling water to flow when the Diaroc / Scandia and Super Diaroc tools are operating. Re-profiling of the button is carried out by keeping the tool in contact with the button and rocking the air grinder. This is carried out until all signs of flats have been removed form the carbide.

Should a particular button not protrude sufficiently from the steel body of the bit, then the Boroscan tool, or the Super Diaroc tools must be used in the same air grinder, to remove the steel away from the base of the button until the correct protrusion has been regenerated.