# Twist drill bit set Irwin 10502524 — 10 pcs, 4.5 mm diameter

**URL:** https://aio.lv/en/product--irwin-10502524--11719929
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10502524
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10502524--11719929

## 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 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Irwin 10502524 is a set of 10 twist drill bits with a 4.5 mm diameter designed for drilling operations. The set contains ten identical bits suited for general-purpose drilling in compatible materials. Packaged for retail, these twist bits are intended for use with standard drills for tasks such as pilot holes, metal or wood drilling depending on bit material compatibility.

## Long description

Irwin 10502524 is a set of ten 4.5 mm twist drill bits made from HSS with 5% cobalt. Designed and manufactured to DIN 338 standards, these drill bits feature a heavy-duty web construction and a 135° split point that reduces bit walking and starts cutting immediately. Each bit has a cylindrical shank and an overall length of 80 mm, providing a balanced combination of strength and rigidity for demanding drilling tasks in metals and other compatible materials.
Advantages
The inclusion of 5% cobalt increases heat and abrasion resistance compared with standard high-speed steel, extending tool life during prolonged or high-temperature drilling. Heavy-duty web construction improves torsional strength and durability, while the 135° split point minimises walking and helps produce accurate pilot holes. Compliance with DIN 338 ensures consistent geometry and performance across the set of ten identical bits.
Suitable for
 Drilling holes in alloyed steels and stainless steel
 Pilot holes and general-purpose metalworking
 Applications requiring higher heat resistance such as abrasive or hardened metal drilling
 Use with standard hand drills and drill presses that accept 4.5 mm cylindrical shanks
Key specifications
 Drill type: Twist drill (HSS cobalt)
 Diameter: 4.5 mm
 Overall length: 80 mm
 Material composition: High-speed steel with 5% cobalt
 Point angle and design: 135° split point
 Shank type: Cylindrical
 Quantity: 10 pieces
 Manufacturing standard: DIN 338
How to use
Secure the appropriate Irwin 4.5 mm bit in the chuck of a compatible drill or drill press. Use cutting fluid or coolant when drilling stainless steel or other heat-sensitive alloys to reduce heat buildup and extend bit life. Start drilling at low speed to establish the hole, then increase speed as needed while maintaining steady pressure; the 135° split point helps prevent walking at the start. Periodically retract the bit to clear chips and inspect the cutting edges. Replace bits from the set when wear begins to affect hole quality.
Usage recommendations
For best results when drilling hardened or stainless steels, use light cutting feed, moderate speed and a suitable cutting lubricant. When drilling thicker sections, peck-drill to clear chips and avoid overheating. Store bits in their original packaging or a dedicated holder to protect cutting edges and maintain consistent performance across the set.

## Specifications

| Feature | Value |
|---|---|
| Length | 80 mm |
| Proper use | Drill |
| Package depth | 3 mm |
| Package height | 80 mm |
| Carrying case | Yes |
| Working length | 47 mm |
| Suitable for materials | Stainless steel, Metal, Alloyed steel |
| Drill bit diameter | 4.5 mm |
| Shank shape | Cylindrical shank |
| DIN compliance | 338 |
| Point angle | 135 ° |
| Drill bit material | High-Speed Steel (HSS) |
| Number of drill bits | 10 pc(s) |
| Drill bit type | Twist drill bit |
| ASIN | B006KASUKG |

## FAQ

### How much does the Irwin twist drill bit set 10502524 — 4.5 mm, 10 pcs cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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

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