# Diamond Core Drill Bit Makita D-44616, 68 mm, M14, for granite marble tile

**URL:** https://aio.lv/en/product--makita-d-44616--4594913
**Data updated:** 2026-04-24 17:39 (EEST)
**Category:** Drill Bits
**Manufacturer:** Makita
**Manufacturer code:** D-44616
**EAN:** 0088381406932
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 54.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--makita-d-44616--4594913

## 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-44616 is a 68 mm diamond core drill bit with M14 thread, designed for drilling through hard surfaces such as granite, marble and ceramic tile. Intended for core drilling and creating clean circular holes in masonry and stone materials. Suitable for use with compatible angle grinders or core drill adapters that accept M14 fittings.

## Long description

Makita D-44616 is a 68 mm diamond core drill bit with an M14 connection, engineered for cutting precise circular holes in hard natural and manufactured stone surfaces. The cutter is designed for controlled core drilling through granite, marble and ceramic tile where a high-quality edge and clean finish are required. It is intended for use with angle grinders or core drill adapters that accept an M14 thread and for applications that require a durable diamond-segment cutting edge.
Advantages
The diamond-segment construction provides consistent cutting speed and extended life when used on abrasive stone materials. The 68 mm diameter yields a stable core size for installations such as plumbing penetrations, anchor points and surface fixtures. The M14 connection enables direct mounting to many angle grinders and compatible adapters, reducing the need for additional couplings. The design focuses on producing clean, chip-minimized holes with minimal need for secondary finishing.
Suitable for
Drilling 68 mm core holes in granite worktops and slabs
Creating openings in marble surfaces for fixtures and pipes
Cutting circular holes in ceramic and porcelain tiles for plumbing and electrical installations
On-site renovation and repair tasks requiring precise round holes in stone materials
When it may not be suitable
This core bit is intended for hard stone and tile; it is not optimized for general-purpose drilling in wood, metal or soft plastics. For deep structural core drilling beyond the bit’s cutting depth or for very large-diameter holes, professional core drill rigs and bits designed for that scale should be used. Using the bit on incompatible machines or without suitable cooling/technique can shorten tool life and affect hole quality.
Key specifications
Cutting diameter: 68 mm
Connection type: M14 threaded mount for direct attachment to compatible angle grinders and adapters
Material: diamond-segment cutting edge for masonry and stone
Primary applications: granite, marble, ceramic and porcelain tile
How to use
Fit the diamond core bit securely to an angle grinder or adapter with an M14 thread, following the machine manufacturer’s mounting instructions and safety checks. Position the bit at the marked drilling point and start at low speed to establish a guide groove, then increase speed and apply steady, even pressure. Use water cooling or intermittent cutting to reduce heat build-up and prolong diamond life when drilling stone or tile; follow recommended safety equipment such as eye protection, dust control and gloves. Withdraw the bit periodically to remove debris and inspect the cutting edge.
What to consider before purchase
Ensure your grinder or adapter accepts an M14 threaded connection
Confirm the 68 mm diameter matches the required hole size for your installation
Assess whether water cooling or dry cutting is appropriate for your chosen material and work environment
Check machine maximum speed and compatibility with diamond core bits for safe operation
Usage recommendations
For best results on granite and marble, use steady low-to-medium speed, maintain water cooling where possible, and allow the diamond segments to cut without excessive force. For tiles, start with a shallow guide groove and proceed gently to avoid cracking. Replace the bit when cutting performance noticeably decreases.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Gold |
| Proper use | Drill |
| Suitable for materials | Granite, Marble, Tile |
| Drill bit diameter | 68 mm |

## FAQ

### How much does the Makita D-44616 diamond core drill bit 68 mm cost, and is it available for purchase?

The price is 65.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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/4594913/53704783_large.webp