# Drill bit Proline 77685, metal, Ø 8.5 mm, length 305 mm, 1 pc

**URL:** https://aio.lv/en/product--proline-77685--11720312
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77685
**EAN:** 5903755154743
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77685--11720312

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Single Proline 77685 metal drill bit with a diameter of 8.5 mm and overall length 305 mm. Designed for drilling metal, this straight shank bit is supplied as one piece and is suitable for handheld drills and drill presses for tasks such as fabrication, maintenance and metalworking holes.

## Long description

Single Proline 77685 metal drill bit with a diameter of 8.5 mm and overall length 305 mm. Manufactured from refined high-speed steel (HSS), this extra-long, fully ground straight shank bit is designed for drilling steel, non-ferrous metals and plastics. The 135° point angle with chamfering adjustment provides fast penetration and reduced walking at the start, while full grinding ensures accurate, rectilinear holes suitable for use with drill bushes, handheld drills and drill presses.
Advantages
The Proline 77685 drill bit features a 135° point angle with chamfering adjustment to speed up drilling and simplify marking out. Fully ground flutes deliver high axial accuracy and straight holes, minimizing rework. Made of refined HSS for wear resistance and consistent cutting performance. Its extra-long length increases reach for deeper holes and awkward workpieces. Supplied as a single piece for flexible use or replacement in toolkits.
Suitable for
 Drilling holes in steel components and structural parts
 Creating holes in non-ferrous metals such as aluminum and brass
 Working with plastics where extended reach is required
 Use with drill bushes, drill presses and handheld electric drills
 Maintenance, fabrication and metalworking tasks requiring precise, straight holes
Key specifications
 Material: refined high-speed steel (HSS)
 Diameter: 8.5 mm
 Overall length: 305 mm
 Point angle: 135° with chamfering adjustment
 Shank type: straight shank
 Finish: fully ground flutes for high accuracy
 Pack quantity: 1 piece
How to use
Secure the Proline 77685 drill bit in the chuck of a handheld drill or drill press, ensuring the straight shank is seated and the chuck is tightened. Select a suitable cutting speed for the material being drilled—lower speeds for harder steels, higher speeds for softer non-ferrous metals and plastics. Use cutting fluid when drilling steel to reduce heat and extend tool life. Start drilling with light pressure to take advantage of the 135° point angle and chamfering adjustment for accurate positioning, then increase feed steadily. Clear chips regularly from deeper holes to avoid clogging.
Usage recommendations
For best results when drilling steel, use appropriate cutting fluid and moderate speed; for aluminium and plastics, use higher speeds and minimal coolant. When precision is required, employ drill bushes or a drill press and inspect hole straightness during drilling.

## Specifications

| Feature | Value |
|---|---|
| Length | 305 mm |
| Metal drill bits diameter | 8.5 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 77685 Ø 8.5 mm, 305 mm cost, and is it available for purchase?

The price is 21.49 € (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 13.07.2026 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/11720312/67193777_large.webp