# Drill bit GRAPHITE cobalt 11 mm cylindrical for metal, model 57H058

**URL:** https://aio.lv/en/product--graphite-57h058--11719808
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H058
**EAN:** 5902062570581
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h058--11719808

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Cobalt cylindrical drill bit by GRAPHITE, 11 mm diameter, designed for drilling metal. Made with cobalt alloy for increased heat resistance and wear performance when working with hard materials and steel. Suitable for use in handheld drills and drill presses for metalworking tasks, maintenance, and fabrication where durable metal-drilling performance is required.

## Long description

GRAPHITE cobalt cylindrical drill bit, 11 mm diameter, designed for drilling metal. Manufactured from a cobalt-alloyed high-speed steel, this drill bit delivers improved heat resistance and greater abrasion durability compared with standard HSS bits. The cylindrical shank fits common chucks in handheld drills and drill presses, enabling straightforward use in metalworking, repair and fabrication tasks that require precise, repeatable holes in steel and other ferrous materials.
Advantages
The cobalt alloy composition increases red-hardness and maintains cutting performance at elevated temperatures, reducing wear when working with hardened steels. The cylindrical shank ensures secure holding in standard drill chucks while simplifying interchangeability. Ground cutting lips and a geometry optimised for metal produce clean holes with reduced burr formation and reliable centring during drilling.
Suitable for
 Drilling through mild and alloy steels
 Metal fabrication and sheet-metal work
 Maintenance and repair tasks on machinery and metal assemblies
 Bench drilling with drill presses and handheld drilling in metal
Key specifications
 Diameter: 11 mm
 Material: cobalt-alloyed high-speed steel (cobalt-enhanced HSS)
 Shank type: cylindrical shank for standard chucks
 Intended use: drilling in ferrous metals and hard materials
 Cutting geometry: ground for metalworking to reduce burrs and improve centring
How to use
Secure the drill bit in the chuck of a handheld drill or drill press, ensuring the cylindrical shank is clamped firmly and the bit is aligned. Select a suitable cutting speed and feed for the metal being drilled — lower speeds for hardened steels and higher speeds for softer materials — and use steady pressure without forcing the bit. Apply cutting fluid or coolant where applicable to reduce heat and extend tool life. Withdraw the bit occasionally to clear chips when drilling deep holes.
Usage recommendations
For best results, use appropriate cutting fluid and moderate speeds for hard steels; ensure the drill and workpiece are securely clamped to maintain accuracy and prolong drill bit life.

## FAQ

### How much does the GRAPHITE cobalt drill bit 11 mm 57H058 cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 02.07.2026 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/11719808/67101102_large.webp