# Drill bits set Proline 78020K, HSS metal, diameter 2 mm, length 49 mm, 5 pcs

**URL:** https://aio.lv/en/product--proline-78020k--11720585
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 78020K
**EAN:** 5903755153852
**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--proline-78020k--11720585

## 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

Proline 78020K is a 5-piece set of HSS metal drill bits with 2 mm diameter and 49 mm length. Designed for drilling metal and similar materials, the set provides uniform size for precision holes, compatible with standard drill chucks. Suitable for metalworking, electronics, hobby projects and light fabrication tasks.

## Long description

Proline 78020K is a 5-piece set of HSS metal drill bits with a 2 mm diameter and 49 mm length, intended for drilling metal and similar materials. Each drill bit is made entirely by grinding from high-class HSS steel with 5% cobalt, providing improved wear and heat resistance. The bits feature a 135° point angle with chamfering adjustment to enable quick drilling and reduce time spent on marking and centring. The set is supplied in a blister pack and is compatible with standard drill chucks for use in handheld and bench drills.
Advantages
The Proline 78020K set combines cobalt-alloy HSS construction and precision grinding to deliver accurate, straight holes and enhanced durability in demanding materials. A 135° point angle improves centring and reduces walking on metal surfaces while the chamfering adjustment helps with fast penetration. High temperature resistance and suitability for difficult-to-process steels and cast iron increase tool life and maintain performance under extended use.
Suitable for
 General metalworking and fabrication tasks
 Drilling in high-alloy, stainless, acid-resistant and creep-resisting steels
 Electronics, PCB and precision hobby projects requiring small-diameter holes
 Light workshop and maintenance work with handheld or bench drills
Key specifications
 Material: high-speed steel (HSS) with 5% cobalt
 Point angle: 135° with chamfering adjustment
 Diameter: 2 mm
 Overall length: 49 mm
 Manufacturing: fully ground flutes for high accuracy and straightness
 Pack quantity: 5 pieces in blister pack
 Suitable for use in standard drill chucks
How to use
Secure the 2 mm drill bit in a standard drill chuck ensuring proper clamping and alignment. Select an appropriate spindle speed and cutting lubricant based on the workpiece material — lower speeds and steady cutting fluid are recommended for hard alloys and stainless steels. Start drilling with light initial pressure to establish the centre, then apply steady pressure and allow the drill to remove chips without forcing. Retract periodically to clear chips and reduce heat build-up. After use, clean chips from the flutes and store the bits in their blister pack to protect the cutting edges.
Usage recommendations
For best results when drilling stainless, high-alloy or cast materials, use cutting fluid and moderate speeds, avoid excessive feed that can cause overheating, and ensure the bit is properly sharpened and securely clamped before operation.

## Specifications

| Feature | Value |
|---|---|
| Length | 49 mm |
| Metal drill bits diameter | 2 |
| Number of drill bits | 5 pc(s) |

## FAQ

### How much does the Proline 78020K drill bits 2 mm, 49 mm, 5 pcs 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 — 200 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 Proline 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 Proline 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/11720585/67193505_large.webp