Bernardo Fine Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 80 for DS 300 S is a professional abrasive consumable available on Krollit, official Bernardo distributor since 2007.
- Compatible model: DS 300 S
- Grinding wheel diameter: 300 mm
- Width: 50 mm
- Bore: 75 mm
- Grit: 80
- Material: Normal corundum
Who uses the Fine Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 80 for DS 300 S and for what
Workshops, joineries and body shops use the Fine Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 80 for DS 300 S for sanding, finishing and surface preparation on the materials and grits indicated in the specifications.
Its place in the Bernardo range
Bernardo Fine Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 80 for DS 300 S is part of the Bernardo abrasive consumables range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performances: 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 Fine Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 80 for DS 300 S for
The fine grinding wheel ø 300 x 50 mm, ø 75 mm, grit 80 for DS 300 S is recommended for the following professional profiles:
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Workshops, joineries and body shops: sanding, finishing and surface preparation with the indicated grits.
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Users with compatible machine (diameter/attachment): original spare part for the machines indicated in the description.
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Materials outside product specification: check the grit and supported material to avoid damaging the workpiece.
Technical specifications
| Compatible model |
DS 300 S |
| Grinding wheel diameter |
300 mm |
| Width |
50 mm |
| Bore |
75 mm |
| Grit |
80 |
| Material |
Normal corundum |
| Origin |
Austria |
| Grit type |
Fine |
Frequently asked questions
What is this grinding wheel with bore used for?
It is used with Bernardo grinders for sharpening and sanding for sanding, polishing or finishing operations on the material indicated in the model.
The choice of model depends on dimensions (200 x 25.4 x 15.88 mm; 175 x 25 x 32 mm; 300 x 50 x 75 mm) and grit (K36, K60, K80) and the type of application (roughing, intermediate sanding or finishing).
Which grit to choose?
K36-K60 for aggressive roughing and paint removal, K80-K120 for intermediate sanding, K150-K240 for pre-painting finishing, K320+ for mirror surfaces.
The most common mistake is to skip intermediate grits: going from K60 to K240 leaves deep marks that cannot be removed. Always proceed in consecutive steps (e.g., K80 → K120 → K180).
What materials is it compatible with?
The model indicates the specific material: stainless steel, aluminum, wood, plastic. Use the correct consumable to optimize durability and work quality.
For stainless steel, use grinding wheels/abrasives with suitable binders to avoid overheating and deformation. For aluminum, prefer abrasives with reduced loading.
How many pieces does the package contain?
The number of pieces is indicated in the model (e.g., "4 pieces", "5 pieces", "6 pieces"). Multiple packages allow you to manage replacement breaks without machine downtime.
For intensive use, it is advisable to keep at least 2-3 packs of the most used grits in stock, so as not to interrupt production when a belt/sleeve runs out.
How are abrasives stored?
Store in a dry place, away from humidity that can alter the binder. Keep them in the original packaging until use to preserve grit and adhesive.
Humidity particularly damages self-adhesive pads and paper-backed abrasive belts. Recommended temperatures: 18-25 °C, relative humidity 40-60%. Closed and ventilated warehouse.
