# Corona C4686 Diamond Grinding Cup Wheel, Double Segment, 125mm

**URL:** https://aio.lv/en/product--corona-c4686--12433775
**Data updated:** 2026-05-14 09:42 (EEST)
**Category:** Power Tools Accessories
**Manufacturer:** Corona
**Manufacturer code:** C4686
**EAN:** 5906741646864
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Corona C4686 is a professional-grade diamond grinding cup wheel featuring a double-segment design for efficient concrete surface preparation. With a 125mm diameter, this tool is engineered for high-performance material removal, smoothing, and leveling of concrete surfaces. Its robust construction ensures durability and consistent results when used with angle grinders for construction and renovation tasks.

## Long description

The Corona C4686 Diamond Grinding Cup Wheel is a professional-grade accessory designed for high-performance concrete surface preparation. Featuring a double-segment configuration, this 125mm cup wheel is engineered to provide efficient material removal, smoothing, and leveling of concrete surfaces. Its robust construction ensures long-lasting durability and consistent performance, making it an essential tool for demanding construction and renovation projects when paired with a standard angle grinder.
Advantages
The double-segment design significantly enhances the grinding speed and efficiency, allowing for rapid removal of concrete layers and surface imperfections. The high-quality diamond abrasive segments are optimized for longevity and heat dissipation, ensuring that the tool maintains its cutting effectiveness even during intensive use. Its balanced structure minimizes vibrations during operation, which helps in achieving a smoother finish and reduces operator fatigue over extended periods of work.
Suitable for
Smoothing rough concrete surfaces
Removing excess concrete or mortar
Leveling uneven floor or wall sections
Preparing concrete surfaces for coatings or sealants
When it may not be suitable
This grinding cup wheel is specifically designed for concrete and masonry materials. It is not suitable for grinding metal, wood, or plastic, as these materials can clog the diamond segments or cause damage to the tool. Additionally, it should not be used for precision cutting tasks, as it is intended for surface grinding and material removal rather than fine detailing.
Key specifications
Diameter: 125mm
Design: Double-segment
Application: Concrete grinding
Compatibility: Standard angle grinders
How to use
To use the Corona C4686, securely mount the cup wheel onto your angle grinder according to the manufacturer's instructions, ensuring the locking nut is tightened properly. Always wear appropriate personal protective equipment, including safety goggles, a dust mask, and hearing protection, as concrete grinding generates significant dust and noise. Start the grinder and apply light, even pressure to the surface, moving the tool in a circular or sweeping motion to achieve an even finish. Avoid applying excessive force, as this can lead to premature wear of the diamond segments.
What to consider before purchase
Ensure your angle grinder is compatible with 125mm diameter accessories
Verify that your grinder has a sufficient power rating for concrete grinding tasks
Check that you have a compatible dust extraction system to manage concrete dust
Usage recommendations: Regularly inspect the diamond segments for signs of wear or damage. To maintain optimal performance, keep the grinding surface clean and ensure the tool is used with a vacuum extraction system to prolong the life of the segments and maintain a clear view of the work area.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Corona products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Corona service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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