# Drill bit Irwin 10502566 twist drill bit, diameter 11 mm, 1 pc

**URL:** https://aio.lv/en/product--irwin-10502566--5027529
**Data updated:** 2026-03-07 15:10 (EET)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10502566
**EAN:** 5709131283652
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10502566--5027529

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Irwin 10502566 is a single twist drill bit with a diameter of 11 mm designed for drilling operations. As a standard twist drill, it suits drilling into common materials where a straight, precise hole is required. Supplied as 1 piece, it is intended for use with compatible drills for metal, wood or plastic depending on drill material and application.

## Long description

Irwin 10502566 is a single 11 mm twist drill bit designed for general drilling tasks in metalworking and other common materials. Manufactured to DIN 338 standards and made with HSS cobalt-grade steel containing 5% cobalt, this drill bit provides improved heat and abrasion resistance compared with standard high-speed steel bits. Supplied as one piece, the bit features a heavy-duty web for greater strength and a 135° split point that reduces walking and starts the cut more reliably on a range of surfaces.
Advantages
The HSS cobalt composition with 5% cobalt increases thermal stability and wear resistance for prolonged life under higher cutting temperatures. The heavy-duty web construction enhances bit rigidity and reduces the risk of breakage during demanding drilling operations. The 135° split point geometry ensures fast centring and reduced walking on the workpiece, improving hole accuracy and reducing the need for pilot holes. Conformity to DIN 338 ensures consistent dimensions and performance for workshop and industrial use.
Suitable for
 Drilling holes in carbon and alloy steels, including heat-treated and hardened steels
 General metalworking tasks where durability and heat resistance are required
 Drilling into wood and plastics when using a compatible drill and appropriate cutting parameters
 Use in handheld drills and drill presses with suitable chuck capacity for 11 mm shanks
Key specifications
 Type: Single twist drill bit (HSS Cobalt)
 Diameter: 11 mm
 Material: High-speed steel with 5% cobalt
 Point angle: 135° split point for reduced walking
 Standard: Manufactured to DIN 338
 Construction: Heavy-duty web for increased strength
 Quantity: 1 piece
How to use
Secure the 11 mm drill bit in a compatible drill chuck, ensuring it is clamped straight and tight. Select appropriate cutting speeds and feed rates for the material: use lower speeds and steady feed for hard or heat-treated metals, and higher speeds for softer metals, wood or plastics. Apply cutting fluid or coolant when drilling metals to reduce heat build-up and extend bit life. Start drilling with light pressure until the split point locates the hole, then apply steady, controlled pressure through the cut. Clear chips frequently to avoid clogging and overheating.
Usage recommendations
Use proper personal protective equipment (safety glasses, gloves) and a drill press or secure clamping for greater accuracy when possible. For maximum life when drilling hardened steels, maintain coolant flow and avoid excessive dwell at the hole bottom. Replace the bit when wear or chipping on the cutting lips compromises hole quality.

## Specifications

| Feature | Value |
|---|---|
| Length | 142 mm |
| Proper use | Drill |
| Carrying case | Yes |
| Working length | 94 mm |
| Suitable for materials | Alloyed steel, Metal, Stainless steel |
| Drill bit diameter | 11 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 10502566, 11 mm cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 14.07.2026 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/5027529/59284286_large.webp