# Diamond drill bit for porcelain stoneware GRAPHITE 6 mm (57H278)

**URL:** https://aio.lv/en/product--graphite-57h278--11942891
**Data updated:** 2026-03-10 11:48 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H278
**EAN:** 5902062572783
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h278--11942891

## 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 GRAPHITE 6 mm (57H278) designed for drilling porcelain stoneware (gres) and similar hard ceramics. The 6 mm diameter provides precise, clean holes for tiles, sanitary ceramics and construction fittings. Suitable for use with hand drills or drill stands at low speed with water cooling to extend tool life.

## Long description

Diamond drill bit GRAPHITE 6 mm (57H278) is designed for drilling porcelain stoneware and other hard ceramic materials. The 6 mm diameter creates precise, clean holes suitable for tiles, sanitary ceramics and construction fittings. The drill bit is compatible with standard rotary hand drills and drill stands when used at low speed with water cooling to reduce heat and prolong cutting edge life.
Advantages
The tool delivers accurate hole placement with minimal chipping due to its diamond cutting edge adapted for dense, low-porosity ceramics. Its narrow 6 mm profile enables fine-diameter drilling for fixtures and fittings while maintaining stability in the bore. When used with appropriate cooling and speed control, the bit offers extended service life and consistent performance across repeated operations.
Suitable for
Drilling porcelain stoneware (gres) tiles
Creating holes in sanitary ceramics and bathroom fixtures
Preparing openings for anchors, dowels and small fittings in ceramic cladding
Workshop or on-site tile installation where precise small-diameter holes are required
Key specifications
Cutting material: diamond grit on the cutting edge suitable for hard ceramics
Nominal diameter: 6 mm for precise small holes
Shank type: standard cylindrical shank compatible with common hand drills and drill stands
Recommended drilling method: low rotational speed with continuous water cooling to minimize overheating
How to use
Secure the workpiece and mark the drilling position. Fit the drill bit into a compatible drill chuck and set the drill to a low speed. Apply light, steady pressure and start drilling; maintain a perpendicular angle to the tile surface. Use a steady stream of water to cool the cutting edge and remove debris. For increased stability and precision, consider using a drill stand or a guide fixture. Withdraw the bit periodically to clear slurry and prevent clogging.
Usage recommendations
Use low RPM and continuous water cooling when drilling porcelain stoneware. Avoid excessive pressure and overheating to preserve the diamond cutting surface. For best results, practice on a sample tile to determine optimal speed and feed for your specific material and equipment.

## FAQ

### How much does the Diamond drill bit GRAPHITE 6 mm 57H278 cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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/11942891/67385571_large.webp