# Drill bit GRAPHITE cobalt for metal, cylindrical shank 6.5 mm (57H040)

**URL:** https://aio.lv/en/product--graphite-57h040--11719817
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H040
**EAN:** 5902062570406
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h040--11719817

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Cobalt drill bit by GRAPHITE designed for drilling metal with a cylindrical shank and 6.5 mm diameter. The high-cobalt material improves heat resistance and wear performance for stainless steel and hard alloys. Suitable for use in hand drills and drill presses for metal fabrication, maintenance and repair tasks.

## Long description

GRAPHITE cobalt drill bit for metal with a cylindrical shank and 6.5 mm diameter is designed for precision drilling in hard and tough materials. Made from high-cobalt alloy, the bit offers improved heat resistance and enhanced wear performance compared to standard high-speed steel bits. Its 6.5 mm diameter and straight shank make it compatible with standard chucks in hand drills and drill presses used in metal fabrication, maintenance and repair tasks.
Advantages
The high-cobalt composition increases hardness at elevated temperatures, reducing edge wear during prolonged drilling in stainless steel and hard alloys. The geometry and cutting angle are optimized for efficient chip evacuation and stable penetration in metal workpieces. The cylindrical shank ensures secure clamping in standard drill chucks, while the 6.5 mm diameter provides a common size for through-holes, pilot holes, and component assembly.
Suitable for
Drilling stainless steel and other corrosion-resistant alloys
Fabrication and assembly of metal components
Maintenance and repair work in workshops and industrial settings
Use with hand drills and drill presses for metalworking
Key specifications
Material: cobalt alloy (high-cobalt drill steel)
Tip diameter: 6.5 mm
Shank type: cylindrical (straight) shank
Intended use: drilling metal, including stainless steel and hard alloys
Compatibility: suitable for standard drill chucks and drill presses
How to use
Clamp the drill bit securely in the drill chuck, ensuring the straight shank is fully seated. Use appropriate cutting speed and feed rate for the workpiece material; reduce speed for stainless steel and hard alloys to minimise heat buildup. Apply cutting fluid or coolant during drilling to extend tool life and improve chip removal. Start drilling with firm, steady pressure and avoid excessive force that could cause bit breakage or workpiece damage. Retract periodically for deep holes to clear chips and allow cooling.
Usage recommendations
For best results when drilling stainless steel or hard alloys, use a low to moderate spindle speed, steady feed, and a suitable cutting fluid. Inspect the bit for wear before use and replace when edges show significant rounding or chipping to maintain hole quality and safety.

## FAQ

### How much does the GRAPHITE cobalt drill bit 6.5 mm cost, and is it available for purchase?

The price is 5.99 € (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 06.07.2026 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/11719817/67101111_large.webp