Radial Bristle Brushes from 3M and Eve.
Unique three dimensional flexible bristle discs form 3M are great for cleaning and maintaining hard to reach areas on platinum, gold, silver, copper, pewter and brass pieces.
Embedded mineral abrasive is harder than most metals. Great for removing oxides-no need for messy compounds.
These discs do not generate the same amount of heat as rubber wheels do.
They can be used individually, or they can be stacked.
3M wheel colour guide
|36 grit ||Brown||Heavy cleaning and scale removal|
|50 grit||Green||Heavy cleaning and fire scale removal|
|80 grit ||Yellow||Fire scale removal|
|120 grit||White||Light cleaning and oxide removal|
|220 grit||Red||Light cleaning and oxide removal|
|400 grit||Blue||Blending and semi-finishing|
|Pumice||Pink||Semi-finishing and pre-polishing|
|1 micron||Light Green||Polishing|