# Drill bit Proline 18 mm, length 191 mm, model 77180, metal drill bit, 1 pc

**URL:** https://aio.lv/en/product--proline-77180--11719659
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77180
**EAN:** 5903755771803
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 16.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77180--11719659

## 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

Proline drill bit model 77180 — single metal drill bit with a diameter of 18 mm and overall length of 191 mm. Designed for drilling holes in metal; compatible with standard drill chucks. Supplied as one piece, it is suitable for workshop, construction and maintenance tasks requiring a large-diameter metal hole.

## Long description

Proline 18 mm metal drill bit, length 191 mm, model 77180, is a single high-speed steel (HSS) twist drill designed for precise metalworking. The bit features a 135° point angle with chamfering adjustment for faster entry and reduced need for centre punching, and is produced entirely by grinding to ensure straightness and dimensional accuracy. Supplied as one piece, the bit is intended for use in standard drill chucks in workshops, construction and maintenance environments that require large-diameter holes in metal.
Advantages
The drill bit is made from refined HSS for increased abrasion resistance, resilience and torsional strength, providing longer tool life under heavy use. Fully ground flutes and cutting lips deliver accurate, straight holes and improved cutting efficiency compared with conventional cylindrical drills. The 135° point geometry with chamfering adjustment reduces walking on the material surface and speeds up drilling operations, while the 191 mm overall length gives reach for deeper holes or working through thicker components.
Suitable for
Drilling holes in steel and non-ferrous metal sheets and plates
Workshop and general maintenance drilling tasks requiring an 18 mm diameter
Construction and assembly where large-diameter metal holes are needed
Use with standard handheld and bench drills equipped with compatible chucks
Key specifications
Material: high-speed steel (HSS), refined grade
Diameter: 18 mm
Overall length: 191 mm
Point angle: 135° with chamfering adjustment
Manufacturing method: fully ground for precision and straightness
Enhanced properties: increased abrasion resistance, resilience and torsional strength
Packaging: single-piece supply in protective plastic tube (pack size varies by diameter)
How to use
Secure the drill bit in a compatible drill chuck and tighten firmly to prevent slipping. Mark the drilling position, and where necessary use a centre punch to create a small dimple; the 135° point helps reduce the need for heavy centre punching. Start drilling at low speed to establish the hole, then increase speed as appropriate for the metal type and thickness. Apply steady feed and moderate cutting lubricant for steel to reduce heat and extend tool life. Clear chips periodically to maintain cutting efficiency and avoid clogging.
Usage recommendations
Use appropriate cutting fluid when drilling ferrous metals, maintain correct drill speed for an 18 mm HSS bit (lower speeds for harder steels), and avoid excessive side load to prevent breakage. Inspect the bit for wear or dulling and replace when performance declines to ensure consistent hole quality.

## Specifications

| Feature | Value |
|---|---|
| Length | 191 mm |
| Metal drill bits diameter | 18 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Proline drill bit 77180 — 18 mm, 191 mm cost, and is it available for purchase?

The price is 19.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 40 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/11719659/67195036_large.webp