# Drill bit set GRAPHITE cobalt metal cylindrical 3.5 mm, 10 pcs (57H023-10)

**URL:** https://aio.lv/en/product--graphite-57h023-10--11719266
**Data updated:** 2026-03-08 11:21 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H023-10
**EAN:** 5902062221988
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h023-10--11719266

## 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

Cobalt metal drill bit set by GRAPHITE, cylindrical shank, 3.5 mm diameter, 10 pieces (MPN 57H023-10). Designed for drilling steel and other hard metals; cobalt alloy increases heat resistance and durability. Suited for handheld drills and drill presses, for metalworking, maintenance and repair tasks requiring precise small-diameter holes.

## Long description

GRAPHITE cobalt metal drill bit set with cylindrical shanks, 3.5 mm diameter, 10 pieces. These drill bits are made from a cobalt-containing high-speed steel alloy designed for drilling steel and other hard metals. The 3.5 mm size provides precise small-diameter holes while the cylindrical shank suits both handheld drills and drill presses commonly used in metalworking, maintenance and repair tasks.
Advantages
The cobalt alloy formulation increases heat resistance and wear life compared with standard high-speed steel, allowing sustained cutting at higher temperatures and under heavier loads. Cylindrical shanks provide stable clamping in standard chucks and enable quick bit changes. A consistent 3.5 mm diameter across the set ensures uniform hole size, and the set of 10 pieces supports repetitive drilling without frequent regrinding or replacement.
Suitable for
Drilling steel and stainless steel
Creating precise small holes in hard metals
Use with handheld electric drills and drill presses
Maintenance, repair and metal fabrication tasks
Workshop and professional trade applications
Key specifications
Material: cobalt-alloy high-speed steel
Shank type: cylindrical
Drill diameter: 3.5 mm
Quantity: 10 pieces
Intended use: drilling hard metals including steel
How to use
Select an appropriate cutting speed for the material you are drilling and secure the workpiece to prevent movement. Fit a 3.5 mm cobalt bit into the drill chuck and tighten firmly. For best results on steel and other hard metals, use cutting fluid or lubricant to reduce heat and improve chip evacuation. Apply steady, moderate feed pressure; avoid excessive force that can cause bit breakage. Retract the bit periodically for chip clearance on deep holes, and allow the bit to cool if it becomes overheated.
Usage recommendations
Use a variable-speed drill or drill press and select a lower RPM for larger-diameter or harder materials. Employ cutting fluid when drilling stainless steel or other heat-sensitive alloys. Store bits in a dry, organized case to protect cutting edges and maintain consistent performance.

## FAQ

### How much does the GRAPHITE cobalt metal drill bits 3.5 mm, 10 pcs cost, and is it available for purchase?

The price is 10.49 € (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 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/11719266/67100569_large.webp