# Drill bit set GRAPHITE 57H036-10 cobalt metal cylindrical 5.5 mm, 10 pieces

**URL:** https://aio.lv/en/product--graphite-57h036-10--11720020
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H036-10
**EAN:** 5902062222053
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 15.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h036-10--11720020

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Cobalt metal drill bit set by GRAPHITE (model 57H036-10) includes ten cylindrical drill bits with a 5.5 mm diameter. Designed for drilling in metal, the cobalt composition improves heat resistance and durability under high-speed and high-temperature conditions. Suitable for workshop and industrial use when machining steel and other hard materials, for drilling through plates, profiles and assemblies.

## Long description

GRAPHITE cobalt metal drill bit set (10 pieces, 5.5 mm) contains ten cylindrical high-speed-drilling bits intended for metalworking tasks. Manufactured with a cobalt-alloy composition, these bits provide increased hardness and heat resistance compared with standard HSS drills, enabling sustained performance during high-speed drilling and when working with harder steels and alloys. The set is presented for use in workshops and industrial environments for drilling through plates, profiles and assembled components where consistent hole quality and tool life are required.
Advantages
The cobalt composition increases wear resistance and maintains cutting edge hardness at elevated temperatures, reducing the risk of rapid dulling during heavy use. Cylindrical shanks ensure secure clamping in standard chucks, while the 5.5 mm diameter offers a precise single-size solution for repetitive drilling tasks. The set of ten identical bits provides immediate replacements, minimising downtime in production or repair work.
Suitable for
 Drilling holes in steel plates and structural profiles
 Workshop and maintenance drilling on assembled equipment
 Operations requiring high-temperature stability and extended tool life
 Repetitive production drilling where identical hole size is needed
Key specifications
 Material: cobalt-alloy high-speed steel (cobalt-enhanced)
 Shank type: cylindrical (round) shank for standard chucks
 Diameter: 5.5 mm
 Quantity: 10 pieces per set
 Primary application: metal drilling (sheets, profiles, assemblies)
How to use
Select an appropriate drilling machine or handheld drill with a compatible chuck and securely clamp the 5.5 mm cylindrical shank. Mark and centre-punch the drilling point on the workpiece to prevent walking. Use cutting lubricant or cooling fluid when drilling harder steels to reduce heat buildup and extend bit life. Start drilling at low speed to establish the hole, then increase speed according to material and machine capabilities while maintaining steady, even feed pressure. After use, clean shavings from the flutes and store bits dry to avoid corrosion.
Usage recommendations
For best results on stainless and hardened steels, use a suitable cutting fluid and moderate feed to avoid overheating. Replace worn bits promptly to maintain hole accuracy, and inspect chuck clamping regularly to ensure concentricity and safe operation.

## FAQ

### How much does the GRAPHITE 57H036-10 cobalt metal drill bits 5.5 mm cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 10.07.2026 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/11720020/67101281_large.webp