# Drill bits Proline 78045K, metal, diameter 4.5 mm, length 80 mm, 2 pcs

**URL:** https://aio.lv/en/product--proline-78045k--11719746
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 78045K
**EAN:** 5903755153937
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-78045k--11719746

## 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

Set of two Proline 78045K metal drill bits with 4.5 mm diameter and 80 mm length. Designed for drilling in metal and other hard materials, these straight-shank bits suit handheld drills and drill presses. Suitable for workshop, maintenance and fabrication tasks where precise 4.5 mm holes are required.

## Long description

Set of two Proline metal drill bits with a 4.5 mm diameter and 80 mm overall length, designed for drilling precise holes in metal and other hard materials. These straight-shank HSS-Co bits are intended for use in handheld drills and drill presses and are supplied in a blister pack that protects the cutting edges during storage and transport.
Advantages
The bits feature a 135° split-point geometry with chamfering adjustment that reduces walking at the start and allows faster, more accurate entry into the workpiece. Manufactured from high-class high-speed steel with 5% cobalt, they offer increased heat resistance and maintain hardness at elevated cutting temperatures. Fully ground flutes and cutting edges ensure high concentricity and rectilinear holes, while the alloy composition and geometry make the drills suitable for demanding materials such as stainless and heat-resistant steels and cast iron.
Suitable for
Drilling precise 4.5 mm holes in ferrous and non-ferrous metals
Workshop maintenance and machine repair tasks
Fabrication and assembly where consistent hole accuracy is required
Use with handheld drills and drill presses
Key specifications
Diameter: 4.5 mm
Overall length: 80 mm
Point angle: 135° with split-point/chamfering
Material: high-speed steel with 5% cobalt (HSS-Co)
Manufacturing: fully ground flutes and tips for high accuracy
Suitable materials: high-alloy steels, titanium, acid-resistant and stainless steels, creep-resisting steels, cast iron and other hard-to-machine materials
Pack quantity: 2 pieces in a blister pack
How to use
Mark the drilling position and secure the workpiece to prevent movement. Use an appropriate cutting fluid or lubricant for drilling metal to reduce heat and extend tool life. Start at low speed to establish the hole, then increase speed as appropriate for the material and drill diameter while maintaining firm, steady feed pressure. Clear chips frequently to avoid clogging the flutes. After use, clean the bits and store them in their blister pack to protect the cutting edges.
Usage recommendations
For best results when drilling stainless or heat-resistant steels, use a suitable coolant, moderate feed pressure and avoid excessive speeds that can overheat the bit. Re-sharpen using professional grinding equipment if required to restore the original 135° geometry and cutting performance.

## Specifications

| Feature | Value |
|---|---|
| Length | 80 mm |
| Metal drill bits diameter | 4.5 |
| Number of drill bits | 2 pc(s) |

## FAQ

### How much does the Proline 78045K metal drill bits 4.5 mm cost, and is it available for purchase?

The price is 6.49 € (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/11719746/67194890_large.webp