# Twist drill bit Irwin 10502556, diameter 5.5 mm, 1 pc

**URL:** https://aio.lv/en/product--irwin-10502556--11721351
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10502556
**EAN:** 05709131283256
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10502556--11721351

## 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 10502556 with a 5.5 mm diameter, supplied as a single piece. Designed for drilling tasks in compatible materials, this twist-style drill bit is intended for use with standard drills. Suitable for general-purpose drilling, repair and installation work where precise 5.5 mm holes are required.

## Long description

Irwin twist drill bit 10502556 with a 5.5 mm diameter is a single-piece HSS cobalt drill designed for precise metal drilling tasks. Engineered to DIN 338 standards, this bit combines a 5% cobalt alloy and heavy-duty web construction to deliver increased heat and abrasion resistance. The 135° split point geometry reduces bit walking and starts cutting immediately, making it suitable for demanding workshop and industrial applications where clean, accurate 5.5 mm holes are required.
Advantages
The 5% cobalt composition improves high-temperature performance and wear resistance compared with standard high-speed steel, extending service life during repeated metal drilling. Heavy-duty web construction increases strength and durability under load, while the 135° split point provides fast penetration with reduced wandering at the drill start. Manufactured to DIN 338 standards, the bit offers consistent geometry and reliable dimensions for repeatable results.
Suitable for
Drilling alloyed steel and hardened metals
Working with stainless steel components
General metal fabrication, repair and installation tasks requiring 5.5 mm holes
Key specifications
Type: Twist drill bit
Diameter: 5.5 mm
Overall length: 93 mm
Material: High-speed steel with 5% cobalt
Point angle/geometry: 135° split point
Shank: Cylindrical shank
Quantity: 1 piece
Standards: Manufactured to DIN 338
How to use
Secure the workpiece and select an appropriate drill speed for the material being drilled; lower speeds are recommended for stainless and hardened steels. Mount the 5.5 mm Irwin twist drill bit in a compatible drill chuck, ensuring the cylindrical shank is clamped firmly. Use steady, even feed pressure and allow the tool to cut without excessive force. Periodically withdraw the bit to clear chips and, when drilling hard or heat-sensitive materials, apply suitable cutting fluid to reduce heat buildup and extend tool life.
Usage recommendations
For best results when drilling alloyed or hardened steels, use moderate cutting speeds, adequate coolant or cutting oil, and avoid excessive axial force. Re-sharpening can restore cutting performance when wear affects the split point geometry.

## Specifications

| Feature | Value |
|---|---|
| Length | 93 mm |
| Proper use | Drill |
| Carrying case | Yes |
| Working length | 57 mm |
| Suitable for materials | Alloyed steel, Metal, Stainless steel |
| Drill bit diameter | 5.5 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 10502556, 5.5 mm cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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/11721351/67191654_large.webp