# Drill bit set GRAPHITE cobalt for metal, cylindrical shank 2.5 mm, 10 pcs

**URL:** https://aio.lv/en/product--graphite-57h018-10--11721126
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H018-10
**EAN:** 5902062221957
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h018-10--11721126

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Cobalt metal drill bit set by GRAPHITE, ten-piece assortment of cylindrical-shank bits with 2.5 mm diameter. Designed for drilling hardened steels and general metalworking where higher heat and wear resistance is required. Suitable for use in handheld drills and drill presses for maintenance, fabrication, and repair tasks on metal components.

## Long description

GRAPHITE cobalt drill bit set for metal, cylindrical shank 2.5 mm, 10 pcs is a compact assortment of high-speed drilling tools intended for cutting and creating holes in a variety of metal materials. The set contains ten identical 2.5 mm diameter bits with a cylindrical shank compatible with standard chucks used in handheld drills and drill presses. Cobalt alloy construction increases hardness and red hardness, improving performance when drilling stainless steel, hardened steels and other demanding metalwork where elevated temperature and wear resistance are required.
Advantages
The cobalt composition provides enhanced heat resistance and durability compared with standard HSS bits, prolonging service life under heavy use. A precise tip geometry promotes accurate centring and consistent hole diameter, while the cylindrical shank ensures secure clamping in most drill chucks. The small 2.5 mm diameter is suitable for fine, accurate work and for drilling pilot holes prior to tapping or larger hole operations.
Suitable for
Drilling stainless steel and hardened steel components
Maintenance and repair tasks on metal assemblies
Fabrication of metal parts and prototype work
Pilot holes for tapping and precision metalworking
Key specifications
Material: cobalt alloy high-speed steel (HSS-Co)
Diameter: 2.5 mm
Shank type: cylindrical
Quantity in set: 10 pieces
Intended use: metal drilling, including hardened and stainless steels
How to use
Select an appropriate drilling speed for the material being worked; lower speeds are recommended for stainless and hardened steels to reduce heat build-up. Secure the workpiece and ensure the drill is mounted firmly in the chuck. Use cutting fluid or coolant during drilling to prolong bit life and improve chip evacuation. Apply steady, moderate feed pressure and withdraw periodically to clear chips when drilling deeper holes. Replace worn bits to maintain hole quality and to avoid excessive force on the tool.
Usage recommendations
For best results when drilling hardened or stainless steels, use a lubricant or cutting oil, moderate spindle speeds, and steady feed pressure. Inspect bits before use for wear or damage and replace when the cutting edges become rounded or performance declines.

## FAQ

### How much does the GRAPHITE cobalt drill bits for metal 2.5 mm, 10 pcs cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 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 08.07.2026 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/11721126/67102353_large.webp