# Diamond drill bit for porcelain stoneware GRAPHITE 38 mm 57H290

**URL:** https://aio.lv/en/product--graphite-57h290--11943452
**Data updated:** 2026-03-10 11:48 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H290
**EAN:** 5902062572905
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h290--11943452

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Diamond drill bit for porcelain stoneware (gres) by GRAPHITE, 38 mm diameter, model 57H290. Designed for dry or wet drilling of hard ceramic and porcelain stoneware surfaces, providing durable cutting edges for hole creation and pipe or fixture installation. Suitable for use with rotary drills and drill stands for precise circular holes in tiles and slabs.

## Long description

Diamond drill bit for porcelain stoneware GRAPHITE 38 mm 57H290 is a tool designed for drilling precise circular holes in hard ceramics and porcelain stoneware. The bit is suitable for both dry and wet drilling methods and is intended for use with rotary drills and drill stands when creating openings for pipes, fixtures or cable passages in tiles and slabs. Its diamond cutting edge ensures efficient material removal and maintains shape during repetitive use.
Advantages
The diamond cutting crown provides long-lasting edge retention and consistent hole quality in dense porcelain and gres. Its diameter and construction enable stable guidance in drill stands and hand-held rotary drills, reducing wobble and improving accuracy. Compatibility with wet and dry drilling expands versatility on different job sites and helps adapt to work conditions without compromising cutting performance.
Suitable for
Creating holes for plumbing and heating pipe installations in porcelain tiles and slabs
Installing electrical boxes, conduits or cable passages through ceramic surfaces
Cutting precise openings for fixtures such as faucets and shower fittings
Working with both hand-held rotary drills and drill press stands for accurate, circular holes
Key specifications
Diameter: 38 mm
Cutting material: diamond grit crown for hard ceramics
Designed application: porcelain stoneware (gres) and hard ceramic tiles
Drilling modes: suitable for dry and wet drilling
Compatible tools: rotary drills and drill stands
How to use
Mark the drilling point on the tile and secure the workpiece to prevent movement. If using a drill stand, align the bit and set the speed according to the drill manufacturer’s guidelines. For hand-held drilling, start at low speed to establish the hole and increase cautiously; apply light, steady pressure without forcing the bit. For wet drilling, supply a consistent flow of water to the cutting area to cool the diamond crown and remove debris. For dry drilling, use intermittent drilling with pauses to avoid overheating.
Usage recommendations
Use appropriate personal protective equipment (safety glasses, gloves and hearing protection). When possible, prefer wet drilling to extend bit life and improve dust control. Match drill speed and feed pressure to the hardness of the material and consult the tool manufacturer’s instructions for optimal performance.

## FAQ

### How much does the Diamond drill bit GRAPHITE 38 mm 57H290 cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 06.07.2026 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 GRAPHITE 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 GRAPHITE 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/11943452/67386241_large.webp