The Bernardo Ø 200 x 20 mm aluminum polishing set is a professional abrasive consumable available from Krollit, official Bernardo distributor since 2007.
- Disc diameter: 200 mm
- Thickness: 20 mm
- Inner hole: 16 mm
- Number of pieces: 6
- Disc material: Pressed technical cotton
- Compatibility: Bench grinder
Who uses the Ø 200 x 20 mm aluminum polishing set and for what
Workshops, joineries, and body shops use the Ø 200 x 20 mm aluminum polishing set for sanding, finishing, and surface preparation on the materials and grits specified in the technical data.
Its place in the Bernardo range
The Bernardo Ø 200 x 20 mm aluminum polishing set is part of the Bernardo abrasive consumables range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Shipping 3-5 working days from Krollit warehouse for spare parts and accessories. Italian customer support available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the Ø 200 x 20 mm aluminum polishing set for?
The Ø 200 x 20 mm aluminum polishing set is recommended for the following professional profiles:
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Workshops, joineries, and body shops: sanding, finishing, and surface preparation in the indicated grits.
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Users with compatible machines (diameter/attachment): original replacement for the machines indicated in the description.
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Materials outside product specifications: check the grit and supported material to avoid damaging the workpiece.
Technical specifications
| Disc diameter |
200 mm |
| Thickness |
20 mm |
| Inner hole |
16 mm |
| Number of pieces |
6 |
| Compatibility |
Bench grinder |
| Disc material |
Pressed technical cotton |
Frequently asked questions
What is this polishing wheel set used for?
It is used with bench grinders for sanding, polishing, or finishing operations on the specific material indicated in the model.
The choice of model depends on the diameter Ø 200 or Ø 250 mm and hole Ø 16 or Ø 20 mm, and the type of application. Compatible with bench grinders with a corresponding wheel bore.
Which grit should I choose?
K36-K60 for aggressive roughing, K80-K120 for intermediate sanding, K150-K240 for pre-painting finishing, K320+ for mirror surfaces.
The most common mistake is skipping intermediate grits: going from K60 to K240 leaves deep marks that cannot be removed. Always proceed in consecutive steps (e.g., K80 → K120 → K180).
Which materials is it compatible with?
The model indicates the specific material (stainless steel, aluminum, wood, plastic). Using the correct abrasive optimizes durability and working quality.
For stainless steel, use abrasives with a suitable binder to prevent heating and deformation. For aluminum, prefer abrasives with reduced loading. For wood, normal corundum is the standard choice.
How many pieces are in the package?
The number of pieces is indicated in the model (e.g., 4 or 5 or 6 pieces). Multiple packages allow you to manage replacements without machine downtime.
For intensive use, it is advisable to keep at least 2-3 packages of the most used grits in stock, so as not to interrupt production when a belt/sleeve runs out.
How should abrasives be stored?
Store in a dry place, protected from humidity which can alter the binder. Keep them in their original packaging until use to preserve grit and adhesive.
Humidity particularly damages self-adhesive pads and paper-backed abrasive belts. Ideal temperatures: 18-25 °C, relative humidity 40-60%. Closed and ventilated warehouse.
