# Drill bit Proline 78075K — metal drill bit Ø7.5 mm, length 109 mm, 1 pc

**URL:** https://aio.lv/en/product--proline-78075k--11914896
**Data updated:** 2026-03-10 09:18 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 78075K
**EAN:** 5903755154057
**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-78075k--11914896

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Single Proline drill bit model 78075K designed for metal drilling. Diameter 7.5 mm, total length 109 mm. Supplied as one piece; suitable for use with compatible drills in metalworking tasks such as fabrication, repair and installation. Straightforward twist-bit design for drilling through steel and other metal materials.

## Long description

Drill bit Proline 78075K is a single high-speed steel twist drill designed for precise metalworking. With a diameter of 7.5 mm and a total length of 109 mm, this bit is intended for drilling holes in a range of difficult-to-machine metals including high-alloy steels, stainless and acid-resistant steels, titanium and cast iron. The 135° point angle with chamfering adjustment shortens centring time and improves cutting performance while the fully ground construction ensures straightness and accurate hole geometry.
Advantages
The drill bit is manufactured from premium HSS with 5% cobalt for improved hardness and thermal resistance during high-speed cutting. Its 135° point angle reduces walking on the workpiece and speeds up drilling. Full grinding processing guarantees high concentricity and rectilinearity of holes. The geometry and material composition provide increased life when working with high-strength and heat-resistant alloys.
Suitable for
 Drilling holes in high-alloy and stainless steels
 Work with titanium and acid-resistant metals
 Fabrication, repair and installation tasks requiring accurate metal holes
 Use in handheld or machine drills where a 7.5 mm diameter is required
Key specifications
 Diameter: 7.5 mm
 Total length: 109 mm
 Point angle: 135° with chamfering adjustment
 Material: high-speed steel with 5% cobalt
 Manufacturing method: fully ground twist drill
 Suitable materials: high-alloy steels, stainless and acid-resistant steels, titanium, cast iron and other hard-to-machine metals
How to use
Secure the drill bit in the chuck of a compatible drill or drill press and ensure correct alignment and clamping. Mark and centre the drilling position, then start at low speed to ensure accurate centring before increasing to the recommended cutting speed for the material. Use appropriate cutting fluid or coolant when drilling stainless, high-alloy steels or titanium to reduce heat and prolong tool life. Apply steady, moderate feed pressure and withdraw periodically to clear chips when drilling deep holes.
Usage recommendations
For best results, select cutting speeds and feed rates suitable for the specific metal being drilled and use coolant with high-alloy or stainless steels. Inspect the bit for wear and replace when cutting performance or hole quality deteriorates.

## Specifications

| Feature | Value |
|---|---|
| Length | 109 mm |
| Metal drill bits diameter | 7.5 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 78075K Ø7.5 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 — 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 06.07.2026 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/11914896/67377796_large.webp