# Diamond Core Bit Makita 51mm (M14) – Makita D-44557, 51 mm diamond-tipped core drill bit with M14 thread

**URL:** https://aio.lv/en/product--makita-d-44557--4573828
**Data updated:** 2026-04-24 17:39 (EEST)
**Category:** Drill Bits
**Manufacturer:** Makita
**Manufacturer code:** D-44557
**EAN:** 0088381406871
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 41.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--makita-d-44557--4573828

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.89 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Makita D-44557 is a 51 mm diamond-tipped core bit with M14 thread designed for drilling precise circular holes in hard materials. The diamond cutting edge provides efficient cutting and durability for use on tile, ceramic, stone and similar surfaces. Suitable for use with rotary drills and angle grinders that accept M14-mounted core bits for renovation and installation tasks.

## Long description

The Makita D-44557 Diamond Core Bit 51mm (M14) is a diamond-tipped core drill bit designed for cutting precise circular holes in hard surfaces. Intended for use on tile, ceramic, natural stone and similar materials, this 51 mm core bit features a threaded M14 shank compatible with angle grinders and rotary drills that accept M14-mounted attachments. The diamond cutting edge improves cutting speed and wear resistance for renovation and installation tasks where clean, accurate holes are required.
Advantages
The diamond segment delivers efficient cutting performance and extended life compared with conventional abrasive bits, while the 51 mm diameter produces consistent round openings for plumbing, electrical and finishing work. The M14 thread enables quick mounting on compatible grinders and some rotary tools without additional adaptors. The construction balances material removal and durability to maintain hole quality across repeated use on hard surfaces.
Suitable for
Drilling circular holes in ceramic and porcelain tiles
Cutting openings in natural stone and engineered stone surfaces
Creating service holes for pipes, conduits and fixtures during renovations
Use with angle grinders or rotary tools fitted with an M14 thread
When it may not be suitable
This core bit is optimized for hard, brittle materials such as tile and stone and is not intended for continuous dry drilling in reinforced concrete or heavy masonry where larger diameter, segmented concrete core bits are recommended. It may also be less efficient on very soft or fibrous materials that do not benefit from a diamond cutting edge.
Key specifications
Cutting diameter: 51 mm
Mount type: M14 threaded shank
Tip material: diamond segment
Recommended materials: tile, ceramic, stone
Typical tool compatibility: angle grinders and rotary drills with M14 thread
How to use
Select a suitable tool that accepts M14-mounted accessories and secure the core bit by tightening the thread according to the tool manufacturer’s instructions. Mark the hole position and start drilling at low speed to establish a groove, then increase speed with steady pressure. Use water or a continuous cooling method if drilling prolonged holes or to reduce dust and heat, especially on ceramic and stone. Keep the tool stable and avoid excessive lateral force to preserve the diamond segment and maintain a round hole.
What to consider before purchase
Ensure your tool accepts M14-threaded accessories
Confirm the 51 mm diameter matches the required hole size for fixtures or pipes
Consider whether wet cooling or intermittent drilling will be needed for your material
Check compatibility of the core bit with the specific substrate (tile, stone type)
Usage recommendations
For best results, use controlled speed and light steady pressure, supply water for cooling when possible, and secure the workpiece to prevent movement. Replace the bit when cutting performance visibly decreases or the diamond segment becomes worn.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.121 kg |

## FAQ

### How much does the Diamond Core Bit Makita D-44557 51mm (M14) cost, and is it available for purchase?

The price is 49.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 01.07.2026 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/4573828/51445632_large.webp