# Drill bit Proline HSS-TiN 8.5 mm – 5154491

**URL:** https://aio.lv/en/product--proline-5154491--10784728
**Data updated:** 2025-12-30 10:13 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 5154491
**EAN:** 5903755154491
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-5154491--10784728

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.06.2026 | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

Proline HSS-TiN 8.5 mm drill bit (MPN 5154491) is a high-speed steel bit with titanium nitride coating for drilling metal and general workshop tasks. The 8.5 mm diameter offers stable hole sizing; TiN coating increases surface hardness and wear resistance for longer tool life. Suitable for use with standard drill chucks in hand and bench drills for metal, wood and some plastics.

## Long description

Proline HSS-TiN 8.5 mm drill bit (MPN 5154491) is designed for drilling metal with a durable titanium nitride (TiN) coating that increases surface hardness and wear resistance. The bit features a sharpened 135° tip with an adjustable rake angle for improved cutting and cleaner holes. Diameter is 8.5 mm, working length 75 mm and overall length 117 mm; compatible with standard drill chucks for hand and bench drills.
Advantages
The HSS substrate combined with TiN coating extends tool life and maintains cutting performance during repeated use. A 135° ground point with rake adjustment reduces walking and improves hole centring on metal surfaces, while the polished flutes aid chip evacuation and produce a smoother hole finish.
Suitable for
Drilling steel and other metals
General workshop and maintenance tasks
Use in hand-held and bench drills with standard chucks
Occasional drilling in wood and some plastics
Key specifications
Brand: Proline
Model / MPN: 5154491
Diameter: 8.5 mm
Working length: 75 mm
Total length: 117 mm
Material: HSS with TiN (titanium nitride) coating
Tip angle: 135° (ground, rake-adjustable)
EAN: 5903755154491
How to use
Secure the drill bit in a suitable chuck and clamp the workpiece as needed. Select an appropriate drilling speed for the metal being worked on, apply steady pressure, and allow the bit to cut without excessive force. Periodically withdraw the bit to clear chips and reduce heat build-up. Use cutting fluid when drilling harder metals to extend bit life and improve hole quality.
Usage recommendations
For best results when drilling hardened or stainless steels, use suitable cutting fluid, lower rotational speeds and steady feed. Replace the bit if the TiN coating shows significant wear or if cutting performance deteriorates.

## FAQ

### How much does the Drill bit Proline HSS-TiN 8.5 mm cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 110 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 18.06.2026 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

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