# Drill bit GEKO Cobalt HSS for metal 4 mm

**URL:** https://aio.lv/en/product--geko-g37040--11359409
**Data updated:** 2026-02-14 19:43 (EET)
**Category:** Drill Bits
**Manufacturer:** GEKO
**Manufacturer code:** G37040
**EAN:** 5901477154287
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 11.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--geko-g37040--11359409

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Cobalt HSS drill bit by GEKO, 4 mm diameter, designed for drilling metal. Made from high-speed steel with cobalt alloy to improve heat resistance and wear life when cutting stainless steel and other hard metals. Suitable for workshop and professional use on hand drills and drill presses. Provides accurate holes and prolonged tool life under higher temperatures.

## Long description

GEKO Cobalt HSS drill bit 4 mm is a precision cutting tool designed specifically for drilling metal. Made from high-speed steel with added cobalt alloy, this 4 mm drill bit offers improved heat resistance and durability when working with stainless steel and other hard metals. It is suitable for use in hand drills and drill presses in workshop and professional environments, delivering accurate round holes and extended tool life under higher cutting temperatures.
Advantages
The cobalt-enhanced HSS composition increases hardness and hot-hardness, reducing wear during prolonged operation and allowing faster cutting speeds compared to standard HSS bits. The 4 mm diameter provides a balance between control and material removal for drilling small-diameter holes. The bit’s ground geometry ensures consistent chip evacuation and precise concentricity, which helps achieve clean hole edges and reliable repeatability in production or repair tasks.
Suitable for
Drilling stainless steel and other hard metals
Workshop repairs and maintenance
Precision tasks requiring small-diameter holes
Use in hand drills and bench/drill press equipment
Key specifications
Material: high-speed steel (HSS) with cobalt alloy
Diameter: 4 mm
Intended material: metal, including stainless steel and hardened steels
Tip/point type: ground for metal cutting (split or standard grind depending on manufacturing)
Compatible tools: hand drills, drill presses
Finish: precision-ground cutting edges for improved chip control
How to use
Secure the workpiece firmly in a vice or with clamps to prevent movement. Select an appropriate drilling speed for the material — slower RPMs for harder metals and higher RPMs for softer metals — and use suitable cutting fluid or coolant when drilling stainless steel to reduce heat buildup and improve chip evacuation. Center-punch the drill location if needed, then start drilling with steady pressure, allowing the bit to cut without excessive force. Periodically withdraw the bit to clear chips and reapply coolant as required. After drilling, deburr the hole edges for a clean finish.
Usage recommendations
For best performance and prolonged life of the GEKO Cobalt HSS 4 mm drill bit, use recommended cutting speeds for cobalt HSS in metalworking charts, apply cutting fluid when machining stainless or high-alloy steels, and avoid excessive feed rates that can cause bit breakage. Store bits in a dry, protected case to prevent edge damage and corrosion.

## FAQ

### How much does the Drill bit GEKO Cobalt HSS 4 mm cost, and is it available for purchase?

The price is 13.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 113 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 13.07.2026 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 GEKO 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 GEKO 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/11359409/65839016_large.webp