# Diamond Core Drill Bit for Porcelain Stoneware 55 mm M14, Keltin

**URL:** https://aio.lv/en/product--keltin-5901477197819--12086549
**Data updated:** 2026-03-13 08:58 (EET)
**Category:** Drill Bits
**Manufacturer:** Keltin
**Manufacturer code:** 5901477197819
**EAN:** 5901477197819
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--keltin-5901477197819--12086549

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Keltin diamond core drill bit designed for drilling porcelain stoneware (gres) with a 55 mm cutting diameter and M14 thread. Supplied in a pack of 50, it is intended for creating clean circular holes in hard ceramic and stoneware materials. Suitable for use with M14-threaded angle grinders and drilling machines for installations such as plumbing, electrical fittings and tile penetrations.

## Long description

Keltin diamond core drill bit for porcelain stoneware with a 55 mm cutting diameter and M14 thread is designed for creating precise circular holes in hard ceramic and gres tiles. Supplied in a pack of 50, this core bit is intended for professional and trade use where multiple clean penetrations through porcelain stoneware are required. It fits M14-threaded angle grinders and compatible drilling machines, enabling faster work on plumbing, electrical and tile installation tasks.
Advantages
The diamond-segmented cutting edge provides efficient material removal and extended life when working with dense porcelain stoneware. A 55 mm diameter offers a standardized hole size suitable for many fixtures and fittings, while the M14 thread ensures secure and direct mounting to common angle grinders and adapters. Delivered in a bulk pack of 50, the set reduces downtime and keeps replacements readily available on-site.
Suitable for
 Drilling clean circular holes in porcelain stoneware (gres) and hard ceramic tiles
 Creating openings for plumbing and pipe installations
 Cutouts for electrical boxes, conduit and cable penetrations in tiled surfaces
 Repeated professional use on renovation and installation projects
Key specifications
 Cutting diameter: 55 mm
 Thread type: M14
 Intended material: porcelain stoneware (gres) and hard ceramic tiles
 Segment type: diamond abrasive cutting edge
 Pack quantity: 50 pieces
How to use
Mark the center point of the desired hole on the tile and secure the workpiece to prevent movement. Attach the diamond core drill bit to an M14-threaded angle grinder or a compatible drilling machine, ensuring a firm connection. Begin drilling at low speed with light pressure to establish the initial cut, then increase speed moderately while maintaining steady coolant or water feed to reduce heat and extend bit life. Withdraw occasionally to clear debris and prevent clogging; finish the hole with controlled, even pressure to avoid chipping the tile surface.
Usage recommendations
Use continuous water cooling or a dedicated wet drilling setup when working with porcelain stoneware to minimize heat buildup and prolong diamond segment life. Wear appropriate personal protective equipment including safety glasses, gloves and a dust mask. For best results on very hard or glazed surfaces, start with a pilot guide or use a drill guide to ensure perpendicular alignment and reduce the risk of chipping.

## FAQ

### How much does the Keltin Diamond Core Drill Bit 55 mm M14 cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 202 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 13.07.2026 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 Keltin 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 Keltin 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

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