These diamonds are used with water for polishing.
These diamonds are not exact grades only approximate, because of this less steps are needed to polish the stone. On most marbles only 2 grades are needed to reach an approximate grade of 400 and then to proceed with crystallisation for a high shine, (3 grades on darker/harder marbles).
Can be used on Granites but NO grades can be skipped.
For any advise on this please telephone 020 8686 7997.
PROFESSIONAL USE ONLY.