# Drill bit Proline 91840 — metal 18 mm diameter, 400 mm length, 1 pc

**URL:** https://aio.lv/en/product--proline-91840--11721107
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 91840
**EAN:** 5903755918406
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-91840--11721107

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Proline 91840 single metal drill bit with 18 mm diameter and 400 mm overall length. Designed for drilling metal, this straight drill bit suits heavy-duty and workshop applications where deeper holes are required. Supplied as one piece; compatible with drilling machines and tool holders matching the shank size.

## Long description

The Proline 91840 drill bit is a single-piece metal drill bit with an 18 mm diameter and a total length of 400 mm. Intended for drilling metal in industrial and professional environments, this straight shank bit is compatible with drilling machines and tool holders that accept its shank dimensions. It is supplied as one piece and is built for applications requiring deeper, precise holes in metal work.
Advantages
This Proline drill bit features a specially shaped solid carbide insert designed to improve durability and maintain cutting performance under demanding conditions. The geometry supports accurate centered drilling and reduces axial load during operation, while the double-twist design assists in quick chip evacuation to help maintain drilling speed and hole quality. The construction and materials aim to provide effective penetration and extended service life when used as intended on metal.
Suitable for
Drilling deep holes in metal components and sheet metal
Workshop and industrial production tasks requiring consistent, repeatable holes
Use with compatible drilling machines and tool holders for metalworking
Key specifications
Diameter: 18 mm
Total length: 400 mm
Quantity: 1 piece
Material: metal drill bit with a solid carbide insert
Shank type: straight shank suitable for matching chucks and holders
How to use
Secure the Proline 91840 drill bit in a drill chuck or tool holder that matches the straight shank size and ensure it is tightened according to the drilling machine manufacturer's recommendations. Select an appropriate rotational speed and feed rate for the metal being drilled, apply consistent axial pressure, and use coolant or cutting fluid as needed to control temperature and prolong tool life. Monitor chip evacuation and pause periodically when drilling very deep holes to clear chips and prevent clogging.
Usage recommendations
Use cutting fluid for most metal drilling operations to reduce heat and wear. Match drill speed and feed to the metal grade and thickness, and inspect the carbide insert periodically for wear or damage; replace the bit if performance drops or signs of excessive wear appear.

## Specifications

| Feature | Value |
|---|---|
| Length | 400 mm |
| Metal drill bits diameter | 18 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 91840 18mm × 400mm cost, and is it available for purchase?

The price is 12.99 € (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 08.07.2026 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/11721107/67192287_large.webp