# Drill bit Proline 77645, metal HSS Ø4.5 mm, length 235 mm, 1 pc

**URL:** https://aio.lv/en/product--proline-77645--11719038
**Data updated:** 2026-03-08 11:21 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77645
**EAN:** 5903755154668
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77645--11719038

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Proline 77645 is a single metal drill bit designed for drilling into metal. It has a diameter of 4.5 mm and an overall length of 235 mm. Constructed as a standard metal/HSS-type twist drill, it is suitable for use with hand drills and drill presses for general metalworking, maintenance and repair tasks.

## Long description

Proline 77645 is a single HSS metal drill bit with a 4.5 mm diameter and a total length of 235 mm, designed for general metalworking and maintenance tasks. Built as an extra-long, fully ground twist drill, it provides precise, straight holes and is suitable for use with hand drills and drill presses. The bit is made from refined high-speed steel (HSS) and features a 135° point angle with chamfering adjustment to enable quick penetration and reduce the need for extended marking or pilot drilling.
Advantages
The fully ground flute geometry ensures high accuracy and rectilinearity of drilled holes, which is especially beneficial when working with drill bushes or jigs. The extra length allows access to deeper or recessed areas without extensions. Made of high-quality refined HSS, the bit offers good wear resistance and reliable edge retention for drilling steel, non-ferrous metals and plastics. The 135° point angle with chamfering improves centring and reduces walking at the start of drilling.
Suitable for
Drilling holes in steel and other ferrous metals
Drilling non-ferrous metals such as aluminium and copper
Creating holes in plastic components
General maintenance and repair with hand drills and drill presses
Applications requiring deep or hard-to-reach holes
Key specifications
Material: refined high-speed steel (HSS)
Diameter: 4.5 mm
Total length: 235 mm
Type: extra-long, fully ground twist drill
Point angle: 135° with chamfering adjustment
Pack quantity: 1 piece
How to use
Secure the workpiece and select appropriate clamping or a drill bush for best accuracy. Fit the 4.5 mm HSS drill bit into the chuck of a hand drill or drill press and tighten firmly. Use recommended cutting speeds and feed rates for the material being drilled; apply cutting fluid when working with steel to extend tool life and improve chip evacuation. Start drilling at low speed to establish the hole, then increase speed as appropriate, applying steady pressure and avoiding excessive side forces.
Usage recommendations
For best results, use a suitable cutting lubricant when drilling steel, and consider a small pilot hole when extreme precision is required. Replace the drill bit if signs of wear or chipping appear to maintain hole quality and safety.

## Specifications

| Feature | Value |
|---|---|
| Length | 235 mm |
| Metal drill bits diameter | 4.5 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 77645 Ø4.5 mm, 235 mm cost, and is it available for purchase?

The price is 9.99 € (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 07.07.2026 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/11719038/67196509_large.webp