Bernardo Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 36 - DS 300 S is a professional abrasive consumable available from Krollit, an official Bernardo distributor since 2007.
- Compatible model: DS 300 S
- Grinding wheel diameter: 300 mm
- Width: 50 mm
- Bore: 75 mm
- Grit: 36
- Suitable for: Iron, steel, construction steel, brass
Who uses the Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 36 - DS 300 S and for what
Workshops, carpentry shops, and body shops use the Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 36 - DS 300 S for sanding, finishing, and surface preparation on the materials and grit sizes indicated in the specifications.
Its place in the Bernardo range
Bernardo Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 36 - DS 300 S is part of Bernardo's range of abrasive consumables, 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 assistance with selection.
Krollit logistics and support
Shipping 3-5 business days from Krollit warehouse for spare parts and accessories. Customer support in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the Grinding Wheel Ø 300 x 50 mm, Ø 75 mm, grit 36 - DS 300 S for?
The grinding wheel ø 300 x 50 mm, ø 75 mm, grit 36 - ds 300 s is recommended for the following professional profiles:
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Workshops, carpentry shops, and body shops: sanding, finishing, and surface preparation with the indicated grit sizes.
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Users with compatible machine (diameter/mount): 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 |
36 |
| Suitable for |
Iron, steel, construction steel, brass |
| Material |
Normal corundum |
| Origin |
Austria |
| Grit type |
Coarse |
Frequently asked questions
What is this grinding wheel with bore used for?
It is used with Bernardo grinders for sharpening and sanding for grinding, 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 (coarse grinding, intermediate sanding, or finishing).
Which grit should I choose?
K36-K60 for aggressive roughing and paint removal, K80-K120 for intermediate sanding, K150-K240 for pre-painting finishing, K320+ for mirror-like 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. Use the correct consumable to optimize durability and work quality.
For stainless steel, use grinding wheels/abrasives with suitable binder to avoid overheating and deformation. For aluminum, prefer abrasives with reduced loading.
How many pieces are in the package?
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 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, away 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-based abrasive belts. Recommended temperatures: 18-25 °C, relative humidity 40-60%. Closed and ventilated warehouse.
