# Drill bit Irwin 10502548 twist drill bit Ø4.1 mm, 1 pc

**URL:** https://aio.lv/en/product--irwin-10502548--11720627
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10502548
**EAN:** 5709131282938
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10502548--11720627

## 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

Twist drill bit Irwin 10502548 with a diameter of 4.1 mm, sold as a single piece. Designed for drilling with standard drills, this twist drill bit is suitable for creating round holes in compatible materials. Core specifications: 4.1 mm drill diameter, spiral flute geometry, single unit packaging. Use for general drilling tasks where a 4.1 mm hole is required.

## Long description

Irwin 10502548 twist drill bit Ø4.1 mm is a single-piece high-speed steel (HSS) cobalt drill designed for precision metal drilling. With a 4.1 mm cutting diameter and spiral flute geometry, this bit is manufactured to DIN 338 standards and built for demanding drilling tasks in alloyed and stainless steels. The 5% cobalt composition increases heat and abrasion resistance, while the heavy-duty web and 135° split point reduce walking and help the bit start cleanly on contact.
Advantages
The 5% cobalt HSS construction improves durability and retains hardness at elevated temperatures, extending tool life during high-speed and heavy-duty drilling. The heavy-duty web adds strength to resist breakage under axial load, and the 135° split point reduces thrust and provides fast penetration with minimal wandering. Spiral flute geometry efficiently evacuates chips to maintain cutting performance when working with metal.
Suitable for
Drilling precise Ø4.1 mm holes in alloyed steel
Drilling stainless steel components and fastener holes
General metalworking and fabrication tasks requiring a 4.1 mm hole
Use with standard hand drills and drill presses
Key specifications
Drill diameter: 4.1 mm
Overall length: 75 mm
Material: HSS with 5% cobalt
Point geometry: 135° split point
Flute: spiral (twist) flute geometry for chip evacuation
Shank type: cylindrical shank
Packaging: single piece
How to use
Select an appropriate drilling speed and apply cutting fluid when drilling alloyed or stainless steels to reduce heat and improve chip removal. Secure the workpiece and align the drill bit with the marked center. Start drilling at low speed to establish the hole with the split point, then increase speed as appropriate while maintaining steady feed pressure. Withdraw periodically to clear chips when drilling deep holes and allow the bit to cool if it becomes excessively hot.
Usage recommendations
For best results, use this Irwin 4.1 mm HSS cobalt drill bit in combination with proper cutting lubricant and a stable drilling setup. Match drill speed to material hardness—lower speeds for hardened or stainless steels—and avoid excessive feed force to reduce risk of breakage. Replace the bit when wear or chipping degrades cutting performance.

## Specifications

| Feature | Value |
|---|---|
| Length | 75 mm |
| Proper use | Drill |
| Carrying case | Yes |
| Working length | 43 mm |
| Suitable for materials | Alloyed steel, Metal, Stainless steel |
| Drill bit diameter | 4.1 mm |
| Shank shape | Cylindrical shank |
| DIN compliance | 338 |
| Point angle | 135 ° |
| Drill bit material | High-Speed Steel (HSS) |
| Number of drill bits | 1 pc(s) |
| Drill bit type | Twist drill bit |

## FAQ

### How much does the Twist drill bit Irwin 10502548 Ø4.1 mm cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 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/11720627/67193424_large.webp