# Drill bit Proline 77655, metal bit, Ø 5.5 mm, length 260 mm, 1 pc

**URL:** https://aio.lv/en/product--proline-77655--11721333
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77655
**EAN:** 5903755154682
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77655--11721333

## 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 77655 is a single metal drill bit with a 5.5 mm diameter and 260 mm overall length. Designed for drilling metal, this solid bit suits handheld drills and drill presses for through-holes and accurate pilot holes. Supplied as one piece, it is intended for general metalworking tasks and maintenance jobs requiring a medium-sized drilling diameter.

## Long description

Proline 77655 is a single HSS metal drill bit with a 5.5 mm diameter and a total length of 260 mm, designed for use in handheld drills and drill presses. The extra-long, fully ground body provides rectilinear drilling and is suitable for through-holes and accurate pilot holes in steel, non-ferrous metals and plastics. The 135° point angle with chamfering adjustment enables fast penetration and reduces the need for extensive marking out before drilling. Supplied as one piece, it is intended for general metalworking and maintenance tasks that require a medium-sized drilling diameter.
Advantages
The drill is made from high-quality refined high-speed steel (HSS), offering good hardness and wear resistance for repeated metal drilling operations. Fully ground flutes ensure high positional accuracy and straightness of holes, which is beneficial when working with drill bushes or when precise alignment is required. The 135° point geometry with chamfering reduces walking and improves centering, while the extra length allows access to deeper holes or recessed workpieces without extensions.
Suitable for
Drilling through-holes and pilot holes in steel and non-ferrous metals
Working with plastics where a long reach is needed
Use in handheld drills and drill presses for general maintenance and fabrication
Key specifications
Diameter: 5.5 mm
Overall length: 260 mm
Point angle: 135° with chamfering adjustment
Material: refined high-speed steel (HSS)
Design: fully ground, extra-long flute geometry for straight drilling
Pack: single piece
How to use
Clamp the workpiece securely and select an appropriate drill speed for the material—moderate speeds for steel, higher for non-ferrous metals and plastics. Mark the drilling point or use a center punch to prevent walking, then align the drill bit perpendicular to the surface. Apply steady, controlled feed pressure and allow the bit to cut without forcing; withdraw periodically to clear chips when drilling deep holes. For handheld use, maintain stable grip and ensure the drill is held square to the workpiece.
Usage recommendations
Use cutting fluid or lubricant when drilling steels to extend bit life and improve hole finish. For non-ferrous metals and plastics, a suitable lubricant or reduced speed can help prevent material buildup on the flutes. Replace the bit if accuracy or cutting performance degrades; regrinding is possible if the geometry is preserved.

## Specifications

| Feature | Value |
|---|---|
| Length | 260 mm |
| Metal drill bits diameter | 5.5 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 77655 Ø5.5 mm, 260 mm cost, and is it available for purchase?

The price is 11.99 € (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 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/11721333/67191783_large.webp