# Irwin HSS Cylindrical Drill Bit 7.8mm

**URL:** https://aio.lv/en/product--irwin-10502309--12432665
**Data updated:** 2026-05-14 07:14 (EEST)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10502309
**EAN:** 5709131038405
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10502309--12432665

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Irwin HSS cylindrical drill bit, diameter 7.8mm, is a high-speed steel tool designed for precise drilling in metal. Its robust construction ensures durability and efficient chip removal, making it suitable for professional and DIY metalworking applications. This drill bit provides reliable performance and clean holes in various ferrous and non-ferrous metals.

## Long description

The Irwin HSS cylindrical drill bit with a 7.8mm diameter is a high-performance tool engineered for precision drilling in a variety of metal surfaces. Constructed from high-speed steel, this drill bit is designed to withstand the rigors of demanding drilling tasks while maintaining structural integrity and sharpness. Its geometry facilitates efficient chip removal, which helps prevent overheating and ensures a smooth, clean finish in both ferrous and non-ferrous metals.
Advantages
This drill bit offers exceptional durability and heat resistance due to its high-speed steel composition, allowing for consistent performance over extended periods of use. The precision-ground tip ensures accurate centering and reduces walking on the workpiece, which is essential for achieving clean, professional-grade holes. Its robust design minimizes the risk of breakage under pressure, providing reliability for both intensive professional projects and home improvement tasks.
Suitable for
Drilling into mild steel and carbon steel
Working with non-ferrous metals like aluminum and copper
General metal fabrication and repair tasks
DIY metalworking projects
When it may not be suitable
This drill bit is not intended for drilling into hardened steel, stainless steel alloys that require specialized cobalt bits, or masonry materials such as concrete and stone. Using it on these materials may cause premature dulling or damage to the cutting edge.
Key specifications
Diameter: 7.8mm
Material: High-speed steel (HSS)
Shank type: Cylindrical
Application: Metal drilling
How to use
To use the Irwin HSS drill bit, ensure it is securely fastened in the chuck of your power drill or drill press. Mark the center point of the hole to be drilled using a center punch to prevent the bit from wandering. Apply steady, moderate pressure while maintaining a consistent drilling speed appropriate for the metal being worked on. It is recommended to use a cutting fluid or oil to lubricate the bit and cool the workpiece, which significantly extends the life of the tool and improves the quality of the hole.
What to consider before purchase
Verify that your drill chuck is compatible with a 7.8mm cylindrical shank
Ensure the material you are drilling is compatible with standard HSS tools
Consider purchasing a set of bits if you require multiple sizes for your project
Usage recommendations
Always wear appropriate eye protection when drilling metal. Periodically clear metal shavings from the hole to prevent clogging and overheating, and allow the bit to cool down if it becomes excessively hot during operation.

## FAQ

### How much does the Irwin HSS 7.8mm Cylindrical Drill Bit cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 15.07.2026 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 Irwin 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 Irwin 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/12432665/68736777_large.webp