# Drill bit Proline 12 mm, length 151 mm, model 79120K, 1 pc

**URL:** https://aio.lv/en/product--proline-79120k--11719035
**Data updated:** 2026-03-08 11:21 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 79120K
**EAN:** 5903755153791
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-79120k--11719035

## 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 drill bit model 79120K — single 12 mm metal drill bit with overall length 151 mm. Designed for drilling metal and similar materials, this solid drill bit suits handheld drills and drill presses. Use for through-holes, maintenance, metal fabrication and workshop repairs where a 12 mm diameter hole is required.

## Long description

Proline 12 mm drill bit, overall length 151 mm, model 79120K, is a single HSS metal drilling tool intended for precise holemaking in steel and similar materials. With a 12 mm diameter and long shank, it fits handheld drills and drill presses to perform through-holes, maintenance work, metal fabrication and routine workshop repairs that require a clean 12 mm opening.
Advantages
The drill bit features a 135° point angle with chamfering adjustment to enable fast penetration and improved centering without excessive wandering, reducing time spent on centre punching. Ground cutting edges provide consistent cutting performance and longer usable life, while refined high-speed steel (HSS) construction offers a balance of hardness and toughness suitable for drilling into ferrous and non-ferrous metals. The product is supplied in a blister pack for safe storage and easy handling.
Suitable for
Drilling through-holes in mild steel, stainless steel and non-ferrous metals
Workshop repairs and maintenance tasks requiring a 12 mm hole
Metal fabrication, assembly and fitting operations
Use with handheld electric drills and benchtop drill presses
Key specifications
Diameter: 12 mm
Overall length: 151 mm
Material: refined high-speed steel (HSS)
Point geometry: 135° point angle with chamfering adjustment
Cutting edges: precision ground
Packaging: single piece in blister pack
How to use
Secure the workpiece and mark the drilling position. For best results, use a center punch before drilling to improve initial centring. Mount the 12 mm HSS drill bit in the chuck of a handheld drill or drill press, ensuring it is tightened and aligned. Select a suitable cutting speed and apply steady pressure; use cutting fluid when drilling tougher steels or when prolonged drilling is required to reduce heat and extend bit life. Withdraw periodically to clear chips and allow cooling.
Usage recommendations
For prolonged tool life and consistent hole quality, use appropriate cutting speeds for the material, apply cutting fluid on harder metals, and avoid excessive feed rates that can cause overheating or breakage. Store the drill bit in its blister pack when not in use to protect the ground edges.

## Specifications

| Feature | Value |
|---|---|
| Length | 151 mm |
| Metal drill bits diameter | 12 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 79120K 12 mm, 151 mm cost, and is it available for purchase?

The price is 7.99 € (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 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/11719035/67196520_large.webp