# Drill bit GRAPHITE 57H046 cobalt for metal, cylindrical shank, 8 mm

**URL:** https://aio.lv/en/product--graphite-57h046--11721715
**Data updated:** 2026-03-08 11:25 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H046
**EAN:** 5902062570468
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h046--11721715

## 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 drill bit by GRAPHITE, model 57H046, designed for drilling metal with an 8 mm cutting diameter and a cylindrical shank. Made from high-speed steel with cobalt alloy for improved heat resistance and wear performance, suitable for drilling stainless steel, hardened steels and other metals. Use with standard drill chucks for workshop, construction and maintenance tasks.

## Long description

GRAPHITE 57H046 cobalt drill bit for metal, 8 mm, with a cylindrical shank is made from high-speed steel with added cobalt to increase heat resistance and wear performance. Designed for machining stainless steel, hardened steels and a variety of other metals, this drill bit fits standard drill chucks and is intended for workshop, construction and maintenance applications. The 8 mm cutting diameter and precise twist geometry provide stable drilling performance and accurate hole dimensions when used with appropriate speeds and cutting fluids.
Advantages
The cobalt alloy in the cutting material improves hardness at high temperatures, which reduces edge wear and extends tool life during drilling of tough or heat-prone metals. The cylindrical shank ensures secure clamping in standard chucks and simplifies tool changes. Ground flutes and a precisely formed point reduce wandering on the workpiece surface and promote efficient chip evacuation, contributing to consistent hole quality.
Suitable for
 Drilling stainless steel
 Drilling hardened and alloy steels
 Workshop and maintenance metalworking tasks
 Construction site on-site metal drilling
Key specifications
 Cutting diameter: 8 mm
 Material: high-speed steel with cobalt alloy
 Shank type: cylindrical shank for standard chucks
 Tip geometry: precision-ground point for reduced walking
 Flute design: spiral flutes for effective chip removal
 Typical applications: stainless steel, hardened steels and general metal drilling
How to use
Secure the drill bit in a compatible drill chuck, ensuring firm clamping of the cylindrical shank. Select appropriate drilling speed based on the workpiece material; use lower speeds for stainless and hardened steels to limit heat buildup. Apply steady feed pressure and allow the tool to cut without excessive force. Use cutting fluid or lubricant when machining steel and stainless steel to improve cooling and prolong tool life. After drilling, clear chips from the hole and inspect the cutting edges for wear before repeated use.
Usage recommendations
For best results when drilling stainless or hardened steels, use moderate spindle speeds, steady feed rates and appropriate cutting fluid. Re-sharpen or replace the bit when wear reduces hole quality to maintain accurate dimensions and avoid excessive heat generation.

## FAQ

### How much does the Cobalt drill bit GRAPHITE 57H046, 8 mm cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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/11721715/67102907_large.webp