The diamond block JB7 is the tool that equips the traditional water polishers, for polishing and roughing of floors.
The price consists of three pieces per set.
| REF.: | JB7 |
| Gold D16: | High roughing |
| Black Ref. D20: | Roughing of hard concrete |
| Yellow D20: | Roughing of soft concrete |
| Grey D45: | Semi roughened |
| Blue D60: | Semi tuned |
| Orange D100: | Refining, grinding preparation |


