# Drill bits set Proline 77803 — 3 pieces

**URL:** https://aio.lv/en/product--proline-77803--11446840
**Data updated:** 2026-03-07 20:13 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77803
**EAN:** 5903755778031
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77803--11446840

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Proline 77803 is a set of three drill bits designed for general drilling tasks. The set includes 3 pieces intended for use with compatible hand drills and drill drivers. It provides a small assortment of sizes for basic metal, wood or plastic drilling tasks and is suitable for home repairs, assembly and maintenance work.

## Long description

Proline 77803 — 3 pieces is a compact set of drill bits intended for general drilling tasks in metal, steel sheets, plastics, wood and other common materials. Manufactured from 4241 HSS and coated with titanium nitride, these bits deliver improved wear resistance and faster heat dissipation during drilling. The set is supplied with a roller shank compatible with most hand drills and drill drivers, and the self-centring tip design prevents slipping on rounded or slippery surfaces while producing clean, burr-free hole edges.
Advantages
The combination of 4241 high-speed steel and titanium nitride coating extends tool life and reduces friction, allowing for more consistent performance in harder materials. Self-centring geometry ensures the drill does not slide on oval or curved surfaces and helps maintain precise hole placement. Rapid heat dissipation reduces the risk of overheating during continuous use. The roller shank improves grip in the chuck for stable drilling and easier bit changes.
Suitable for
 Home repairs and maintenance
 Assembly and installation tasks
 Drilling in metal and steel sheets
 Drilling through plastics and light woods
Key specifications
 Material: 4241 high-speed steel (HSS)
 Surface finish: titanium nitride coating
 Shank type: roller shank for improved chuck grip
 Tip design: self-centring to reduce slipping on rounded surfaces
 Performance: rapid heat dissipation for drilling in harder materials
 Hole quality: clean, burr-free hole edges
 Contents: set of 3 drill bits
How to use
Select the drill bit that matches the diameter required for your task and securely insert the roller shank into a compatible hand drill or drill driver. Start drilling at low speed to allow the self-centring tip to locate the intended position, then increase speed according to the material being worked on. Apply steady, moderate pressure and withdraw periodically when drilling thicker or harder materials to allow chips to clear and to promote cooling. Use cutting fluid or coolant where appropriate for metal drilling to extend bit life.
Usage recommendations
For best results when drilling metal or steel sheets, clamp the workpiece and mark the drilling point before starting. Use appropriate personal protective equipment such as safety glasses and gloves. Store the bits in a dry place to prevent corrosion and inspect them for wear before use; replace any bit that shows significant wear or damage to maintain hole quality and reduce the risk of breakage.

## Specifications

| Feature | Value |
|---|---|
| Number of drill bits | 3 pc(s) |

## FAQ

### How much does the Proline 77803 drill bits set — 3 pcs cost, and is it available for purchase?

The price is 34.99 € (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 03.07.2026 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/11446840/66151290_large.webp