# Drill bit set GRAPHITE cobalt metal, cylindrical shank 3 mm, 10 pcs (57H020-10)

**URL:** https://aio.lv/en/product--graphite-57h020-10--11719579
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H020-10
**EAN:** 5902062221964
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h020-10--11719579

## 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

GRAPHITE cobalt drill bits for metal, cylindrical shank, 3 mm diameter, set of 10 pieces (MPN 57H020-10). Designed for drilling into steel and other ferrous materials where increased heat resistance and wear resistance are required. Cobalt alloy enhances performance when cutting hard metals and prolongs tool life; suitable for workshop and professional metalworking tasks.

## Long description

GRAPHITE cobalt metal drill bits with a cylindrical shank, 3 mm diameter, set of 10 pieces. These drill bits are made from a high-speed steel base with an increased cobalt content to improve hardness, heat resistance and wear performance when working with steel and other ferrous materials. The compact set provides a consistent diameter for repeatable holes and is intended for use in handheld drills and drill presses that accept cylindrical shanks of this size.
Advantages
Cobalt alloy construction provides greater heat resistance and longer tool life when drilling hard metals compared with standard high-speed steel bits. The cylindrical shank ensures secure seating in chucks and adapters without the need for special taper mounts. A uniform 3 mm diameter across all pieces in the set simplifies tool selection for fine drilling tasks and reduces downtime due to bit changes.
Suitable for
 Drilling holes in carbon steel and alloy steel components
 Workshop and professional metalworking tasks
 Use in handheld drills and bench drill presses with cylindrical shank chucks
 Repair, maintenance and fabrication jobs that require small-diameter precision holes
Key specifications
 Material: high-speed steel with cobalt alloy
 Shank type: cylindrical
 Diameter: 3 mm
 Quantity in set: 10 pieces
 Intended use: drilling in ferrous metals
How to use
Mark the drilling position and secure the workpiece to prevent movement. Select an appropriate cutting speed and feed for the metal being drilled—slower speeds are recommended for harder steels to reduce heat buildup. Use a suitable cutting fluid or lubricant to improve chip evacuation and extend bit life. Start drilling with steady, even pressure, withdraw periodically to clear chips, and finish the hole with a controlled feed to maintain diameter accuracy.
Usage recommendations
For best results when drilling hard or thick ferrous materials, use a cutting fluid, maintain moderate speed, and avoid excessive axial force that can cause premature wear or breakage of the 3 mm bits. Inspect bits for wear and replace when cutting performance or hole quality declines.

## FAQ

### How much does the GRAPHITE cobalt drill bits for metal 3 mm, 10 pcs cost, and is it available for purchase?

The price is 8.99 € (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/11719579/67100876_large.webp