# Drill bit GRAPHITE 13 mm cobalt for metal, cylindrical shank (57H066)

**URL:** https://aio.lv/en/product--graphite-57h066--11719942
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H066
**EAN:** 5902062570666
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h066--11719942

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Cobalt metal drill bit by GRAPHITE, 13 mm diameter with a cylindrical (walcowy) shank, designed for drilling hardened and stainless steels as well as other metals. The 57H066 model provides increased heat resistance and wear durability typical of cobalt alloys, suitable for use with hand drills and drill presses in metalworking, maintenance and repair tasks.

## Long description

GRAPHITE cobalt metal drill bit, 13 mm diameter with a cylindrical shank, is designed for drilling hardened and stainless steels as well as a broad range of other metals. The cobalt alloy composition increases heat resistance and wear durability compared with standard high-speed steel bits, allowing sustained cutting at higher temperatures and under heavier loads. The cylindrical shank fits common chucks on hand drills and drill presses, making this drill bit suitable for workshop, maintenance and industrial metalworking tasks.
Advantages
The 13 mm cobalt drill bit combines enhanced hardness and thermal stability to provide longer life when machining tough, heat-generating metals. Its ground cutting edges maintain sharper geometry for consistent hole quality and reduced walking at startup. Compatibility with standard chucks and robust shank construction ensure secure clamping and reliable performance during repetitive drilling operations.
Suitable for
 Drilling hardened steel and stainless steel
 Metal fabrication and machining tasks
 Maintenance, repair and overhaul (MRO) work
 Use with hand drills and drill presses
Key specifications
 Diameter: 13 mm
 Material: cobalt alloy drill steel for enhanced heat resistance
 Shank type: cylindrical shank suitable for standard chucks
 Intended use: drilling in hardened and stainless steels and other metals
 Typical edge finish: ground cutting geometry for improved hole quality
How to use
Select appropriate clamping of the cylindrical shank in the drill chuck, ensuring the bit is seated straight and tightened securely. Use a steady feed rate and appropriate spindle speed for the material being drilled—lower speeds for hardened steels, moderate speeds for stainless steel—to reduce overheating. Apply cutting fluid or coolant when drilling stainless or hardened materials to extend tool life and improve chip evacuation. Clear chips frequently and allow the bit to cool between long drilling runs to preserve hardness and cutting performance.
Usage recommendations
For best results, match drill speed and feed to the metal and thickness being worked, keep the cutting edge sharp, and use suitable coolant when drilling stainless or heat-resistant alloys. Replace the bit when wear or chipping degrades hole quality to avoid damage to the workpiece.

## FAQ

### How much does the GRAPHITE 13 mm cobalt metal drill bit 57H066 cost, and is it available for purchase?

The price is 12.99 € (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 07.07.2026 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/11719942/67101238_large.webp