# Drill bit GRAPHITE 9 mm cobalt for metal, cylindrical shank (57H050)

**URL:** https://aio.lv/en/product--graphite-57h050--11721665
**Data updated:** 2026-03-08 11:25 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H050
**EAN:** 5902062570505
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h050--11721665

## 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 9 mm metal drill bit by GRAPHITE with a cylindrical (walcowy) shank, designed for drilling hard metals. The bit's cobalt alloy composition provides improved heat resistance and wear durability during high-speed or heavy-duty drilling. Suitable for hand drills and drill presses when producing holes in steel and other ferrous materials.

## Long description

GRAPHITE cobalt 9 mm metal drill bit with a cylindrical shank is designed for drilling hard and alloyed ferrous materials. Made from a cobalt-enriched high-speed steel alloy, the drill bit offers improved heat resistance and wear durability compared with standard HSS bits. The cylindrical (straight) shank fits common chucks in hand drills and drill presses, making it suitable for workshop and industrial use when accurate, repeatable holes in steel and similar metals are required.
Advantages
The cobalt alloy composition increases red-hardness and extends tool life under high cutting temperatures, reducing wear during prolonged or heavy-duty drilling. The 9 mm diameter provides a balance between structural rigidity and cutting efficiency, while the precision-ground flutes ensure effective chip evacuation and reduced clogging. The straight cylindrical shank allows secure clamping in conventional drill chucks and collets.
Suitable for
 Drilling holes in stainless steel and high-strength alloy steels
 Workshop and maintenance operations with hand-held drills
 Use in drill presses for repeatable and accurate hole making
 Repair, fabrication and metalworking tasks requiring durable cutting performance
Key specifications
 Diameter: 9 mm
 Material: cobalt-enriched high-speed steel
 Shank type: cylindrical (straight) shank
 Intended use: drilling in ferrous metals and alloy steels
 Flute type: precision-ground for chip removal
How to use
Secure the drill bit in the chuck or collet of a suitable hand drill or drill press, ensuring the shank is clamped fully and concentrically. Use appropriate spindle speed and feed rate for the material being drilled: lower speeds for harder or thicker steels, higher speeds for softer ferrous materials. Apply steady pressure without excessive force to avoid bit breakage and allow coolant or cutting fluid to reduce heat and improve chip evacuation. Withdraw the bit periodically to clear chips when drilling deep holes.
Usage recommendations
For best results, use cutting fluid or coolant when drilling stainless or high-alloy steels, and start with a small pilot hole when precision and centring are critical. Inspect the cutting edges regularly and replace the bit when wear or chipping reduces performance.

## FAQ

### How much does the Drill bit GRAPHITE 9 mm cobalt for metal cost, and is it available for purchase?

The price is 12.49 € (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/11721665/67102857_large.webp