# Metal drill bit Proline 91821 — 18 mm diameter, 210 mm length, 1 pc

**URL:** https://aio.lv/en/product--proline-91821--11398401
**Data updated:** 2026-03-07 20:04 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 91821
**EAN:** 5903755918215
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 7.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-91821--11398401

## 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 91821 is a single metal drill bit with an 18 mm diameter and 210 mm overall length. Designed for drilling metal, this solid drill bit suits through-holes and deep drilling tasks in steel and other ferrous materials. Delivered as one piece, it is intended for use with compatible drill chucks and hand or machine drills.

## Long description

Proline 91821 is a single metal drill bit with an 18 mm diameter and a total length of 210 mm, supplied as one piece. Designed for drilling metal, this solid drill bit is suitable for through-holes and deeper drilling tasks in steel and other ferrous materials. The shank and flute geometry are intended for use with compatible drill chucks in hand-held or machine drills.
Advantages
The solid design offers improved durability and accurate centered drilling for consistent hole quality. A specially shaped cutting geometry and carbide insert concept provide high effectiveness and reduced load on the drill during cutting, while the double-twist flute promotes efficient chip evacuation for faster drilling progress in deep holes.
Suitable for
 Drilling through-holes and deep holes in steel and other ferrous metals
 Use with hand-held drills and drill presses with compatible chucks
 Applications requiring accurate, centered metal holes
Key specifications
 Diameter: 18 mm
 Total length: 210 mm
 Quantity: 1 piece
 Material compatibility: steel and other ferrous materials
 Flute type: double-twist for chip evacuation
How to use
Install the drill bit securely in a compatible chuck, ensuring correct centering and tight clamping. Begin drilling at low speed to establish a pilot groove, then increase speed and feed rate appropriate for the metal being drilled. Use steady pressure and allow the drill bit to cut without excessive force. For deep holes, periodically withdraw the bit to clear chips and prevent clogging of the flutes.
Usage recommendations
For best results, use cutting fluid or lubricant when drilling steel to reduce heat build-up and extend tool life. Match drill speed and feed to the material thickness and hardness, and inspect the bit for wear before use to maintain hole accuracy.

## Specifications

| Feature | Value |
|---|---|
| Length | 210 mm |
| Metal drill bits diameter | 18 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Metal drill bit Proline 91821 cost, and is it available for purchase?

The price is 8.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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/11398401/66197273_large.webp