# Diamond Core Drill Bit for Porcelain/Gres GEKO 150 mm (25 mm arbor)

**URL:** https://aio.lv/en/product--geko-5901477194504--12373725
**Data updated:** 2026-04-26 20:45 (EEST)
**Category:** Power Tools Accessories
**Manufacturer:** GEKO
**Manufacturer code:** 5901477194504
**EAN:** 5901477194504
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-08-18 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--geko-5901477194504--12373725

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Diamond core drill bit by GEKO designed for drilling porcelain stoneware (gres). 150 mm cutting diameter with a 25 mm arbor connection. Intended for clean, precise holes in hard tiles and stone-like ceramics using wet drilling on appropriate drills. Suitable for professional tiling work, installation of fixtures, and plumbing or electrical penetrations through gres surfaces.

## Long description

The Diamond Core Drill Bit for Porcelain/Gres GEKO 150 mm (25 mm arbor) is a wet-cutting diamond core designed for drilling large clean holes in hard ceramic surfaces such as porcelain stoneware (gres). With a 150 mm cutting diameter and a 25 mm arbor connection, the bit is intended for use with drills that support wet core drilling and provide stable rotation. It is suitable for creating openings for fixtures, plumbing, electrical conduits, and other penetrations where precision and minimal chipping are required.
Advantages
This GEKO diamond core bit delivers accurate circular cuts with a continuous diamond-segment rim that reduces chipping on delicate glazed surfaces. The wet-drilling design helps control dust and heat, extending the life of the tool and improving cut quality. The 25 mm arbor interface provides a secure connection to compatible core drill adapters or drill spindles, enabling stable operation on suitable drill rigs or handheld drills equipped for core drilling.
Suitable for
 Drilling clean holes in porcelain stoneware (gres) and similar hard tiles
 Installing bathroom and kitchen fixtures where precise tile penetrations are required
 Creating openings for plumbing pipes, drainage, and electrical conduits through tiled surfaces
 Professional tiling and renovation projects that require wet core drilling techniques
When it may not be suitable
This core drill bit is designed specifically for wet drilling in hard ceramic materials; it is not intended for dry drilling applications. It may not perform efficiently on softer materials such as standard ceramic wall tiles, wood, plastics, or thin porcelain where a smaller or different type of bit would be more appropriate. Using the bit without adequate water cooling, improper drill speed, or on unsupported substrates can lead to overheating, rapid wear, or breakage.
Key specifications
 Cutting diameter: 150 mm
 Arbor connection diameter: 25 mm
 Cutting type: diamond core, continuous rim for tile
 Intended drilling method: wet drilling
 Primary material application: porcelain stoneware (gres) and hard tiles
How to use
Mount the diamond core bit onto a compatible arbor or drill spindle with a secure 25 mm connection. Secure the workpiece and mark the drilling location. Start drilling with a low to moderate speed using a constant supply of water to the cutting edge to cool the diamond segments and remove slurry. Apply steady, even pressure without forcing the bit; allow the diamond rim to cut the material. After cutting through, withdraw the bit slowly while maintaining water flow to minimize chipping and flush debris.
What to consider before purchase
 Confirm that your drill or core adapter supports a 25 mm arbor connection and wet core drilling
 Ensure the 150 mm diameter is appropriate for the intended fixture or opening
 Verify that the target material is porcelain stoneware (gres) or similar hard tile suited for diamond wet drilling
 Plan for a water supply or coolant system compatible with your drilling setup
Usage recommendations
Use steady, controlled drilling speeds and continuous water cooling. Start the cut at an angle or with a pilot hole technique if needed to prevent slipping on glazed surfaces. Replace the bit when cutting performance decreases noticeably to maintain clean edges and safe operation.

## FAQ

### How much does the GEKO Diamond Core Drill Bit 150 mm 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 — 376 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 03.08.2026 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 GEKO 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 GEKO 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