# Makita D-79930 Diamond Core Bit 10mm M14

**URL:** https://aio.lv/en/product--makita-d-79930--12511241
**Data updated:** 2026-06-10 09:32 (EEST)
**Category:** Power Tools Accessories
**Manufacturer:** Makita
**Manufacturer code:** D-79930
**EAN:** 0197050358110
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--makita-d-79930--12511241

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Makita D-79930 is a high-quality 10mm diamond core bit featuring an M14 connection. Designed for precise drilling in hard materials, this tool ensures efficient performance and durability. It is compatible with standard angle grinders, making it an ideal choice for professional construction and renovation tasks requiring clean, accurate holes in tiles, stone, or masonry.

## Long description

The Makita D-79930 Diamond Core Bit is a precision-engineered tool designed for drilling clean and accurate holes in demanding materials. With a 10mm diameter and a standard M14 connection, this core bit is optimized for use with angle grinders, providing a reliable solution for both professional contractors and experienced DIY enthusiasts. Its robust construction ensures consistent performance and longevity when working with hard surfaces.
Advantages
This diamond core bit stands out due to its high-quality composition, which allows for efficient material removal and smooth drilling operations. The M14 mounting system ensures a secure and stable fit on most standard angle grinders, minimizing vibrations and enhancing control during the drilling process. Its durable design is specifically tailored to withstand the rigors of frequent use in construction and renovation environments, maintaining its cutting efficiency over time.
Suitable for
Drilling precise holes in ceramic and porcelain tiles
Working with natural stone and masonry
Professional renovation and construction projects
Installing fixtures and hardware on hard surfaces
When it may not be suitable
This core bit is not intended for drilling through metal, wood, or soft plastics, as these materials may damage the diamond segments. It is also not suitable for use with standard drill drivers that lack the required M14 spindle interface or the necessary rotational speed for diamond core drilling.
Key specifications
Diameter: 10 mm
Connection type: M14 thread
Material: High-grade steel body with diamond cutting edge
Compatibility: Standard angle grinders
How to use
To use the Makita D-79930, securely attach the bit to the M14 spindle of your angle grinder. Ensure the tool is unplugged or the battery is removed during installation. Position the bit at a slight angle to start the hole to prevent slipping, then gradually straighten it as the cut deepens. Apply steady, light pressure and allow the diamond segments to do the work, avoiding excessive force that could overheat the bit.
What to consider before purchase
Verify that your angle grinder features an M14 spindle connection
Ensure the material you intend to drill is compatible with diamond core bits
Check that your equipment supports the recommended RPM for a 10mm core bit
Usage recommendations
For optimal results and to extend the lifespan of the diamond segments, it is recommended to use a cooling agent or water during the drilling process, especially when working with dense stone or porcelain. Always wear appropriate personal protective equipment, including safety glasses and respiratory protection.

## FAQ

### How much does the Makita D-79930 Diamond Core Bit 10mm M14 cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 51 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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 Makita 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 Makita 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

https://aio.lv/img/cache/product/12511241/68855457_large.webp