# Drill bit for metal GRAPHITE cobalt cylindrical 4.8 mm set of 10 (57H030-10)

**URL:** https://aio.lv/en/product--graphite-57h030-10--11721270
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H030-10
**EAN:** 5902062222022
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h030-10--11721270

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Cobalt cylindrical drill bits for metal by GRAPHITE, diameter 4.8 mm, supplied as a set of 10 pieces (MPN 57H030-10). Designed for drilling into steel and other metal materials where enhanced heat resistance and wear performance are required. Suitable for workshop, maintenance and metal fabrication tasks using handheld drills or drill presses.

## Long description

Drill bit for metal GRAPHITE cobalt cylindrical 4.8 mm set of 10 are precision-made cobalt cylindrical drill bits designed for drilling steel and other metal materials. Each bit has a 4.8 mm cutting diameter and is supplied as a set of ten identical pieces intended for use with handheld drills and drill presses in workshop, maintenance and fabrication environments. The cobalt alloy construction increases heat resistance and wear life compared with standard high-speed steel bits, making these tools suitable where higher cutting temperatures and extended use are expected.
Advantages
The cobalt composition provides greater hardness and thermal stability, reducing wear during prolonged drilling into hard metals. Cylindrical shank design ensures secure clamping in standard chucks and simple interchangeability. Supplied as a set of ten, the kit supports repeated or multiple simultaneous tasks and reduces downtime caused by frequent replacements. The 4.8 mm diameter meets common tapping and fastening requirements in metalworking projects.
Suitable for
 Drilling mild and alloy steels
 Workshop maintenance and repair tasks
 Metal fabrication and assembly
 Use with handheld drills and drill presses
Key specifications
 Material: cobalt alloy high-speed steel
 Type: straight (cylindrical) shank twist drill
 Cutting diameter: 4.8 mm
 Set quantity: 10 pieces
 Intended application: drilling into steel and other metals
How to use
Secure the drill bit in the chuck, ensuring sufficient clamping length on the cylindrical shank. Use appropriate cutting fluid or coolant when drilling steel to reduce heat buildup and extend tool life. Start at low speed to locate the position, then increase speed and apply steady feed pressure appropriate for the material and bit size. Clear chips frequently and allow the bit to cool between prolonged cuts to maintain cutting performance.
Usage recommendations
For best results, use with a suitable cutting lubricant, maintain correct drill speed for the material, and avoid excessive side loads. Replace bits showing significant wear or chipping to prevent damage to workpieces and ensure consistent hole quality.

## FAQ

### How much does the GRAPHITE cobalt drill bit for metal 4.8 mm 10 pcs cost, and is it available for purchase?

The price is 15.99 € (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 10.07.2026 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/11721270/67102495_large.webp