# Makita D-44454 Diamond Core Drill Bit 20mm M14

**URL:** https://aio.lv/en/product--makita-d-44454--4573822
**Data updated:** 2026-06-10 09:28 (EEST)
**Category:** Drill Bits
**Manufacturer:** Makita
**Manufacturer code:** D-44454
**EAN:** 0088381406772
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--makita-d-44454--4573822

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Makita D-44454 is a professional 20mm diamond core drill bit featuring an M14 connection. Designed for precision drilling, this bit is specifically engineered for use with granite, marble, and ceramic tiles. Its robust construction ensures efficient material removal and long-lasting performance in demanding masonry applications, making it an essential tool for stone and tile installation projects.

## Long description

The Makita D-44454 is a professional 20mm diamond core drill bit designed for high-precision drilling in hard materials. Featuring a standard M14 connection, this tool is compatible with most angle grinders, allowing for stable and controlled operation. It is engineered to provide clean, accurate holes in demanding masonry environments, ensuring professional results for both trade experts and DIY enthusiasts.
Advantages
This diamond core drill bit offers exceptional durability and efficiency when working with dense stone materials. Its high-quality diamond segments are optimized for fast material removal while maintaining structural integrity, which significantly reduces the risk of chipping or cracking the workpiece. The robust design ensures a long service life even under continuous use, providing consistent performance across various stone and tile installation projects.
Suitable for
Drilling holes in granite
Working with marble surfaces
Installing ceramic tiles
Precision masonry applications
This drill bit may not be suitable for drilling through reinforced concrete, metal, or wood, as the diamond segments are specifically optimized for stone and ceramic materials. Using this tool on incompatible surfaces may lead to premature wear of the diamond segments or damage to the tool itself.
Key specifications
Diameter: 20mm
Connection type: M14
Material compatibility: Granite, marble, ceramic tiles
Application type: Dry or wet drilling
To use the Makita D-44454, securely attach the bit to an M14-compatible angle grinder. Ensure the tool is firmly held and positioned at the desired drilling point. Start the drilling process at a slight angle to establish a groove before gradually moving to a perpendicular position. Maintain steady pressure and allow the diamond segments to perform the cutting, avoiding excessive force that could overheat the bit.
What to consider before purchase
Verify that your power tool supports the M14 connection system.
Ensure the 20mm diameter meets your specific project requirements.
Confirm the material you are drilling is compatible with diamond core technology.
Usage recommendations: For optimal performance and to extend the life of the drill bit, use a steady, light pressure and allow the tool to cool down periodically if drilling multiple holes in succession. Always wear appropriate personal protective equipment, including safety glasses and respiratory protection, when drilling stone materials.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Gold |
| Proper use | Drill |
| Suitable for materials | Granite, Marble, Tile |
| Drill bit diameter | 20 mm |

## FAQ

### How much does the Makita D-44454 Diamond Core Drill Bit 20mm cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 02.07.2026 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/4573822/53704059_large.webp