# Twist drill bit, Irwin 10502507, 1 mm diameter, set of 2

**URL:** https://aio.lv/en/product--irwin-10502507--12098710
**Data updated:** 2026-03-20 09:51 (EET)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10502507
**EAN:** 05709131282532
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 2.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10502507--12098710

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary description

Irwin 10502507 twist drill bit set contains two 1 mm diameter bits designed for drilling. These twist-style drill bits are intended for standard drilling tasks using a drill and provide precise small-diameter holes. Suitable for fine metalworking, electronics, model making and other applications requiring accurate 1 mm holes.

## Long description

Irwin 10502507 twist drill bit set includes two 1 mm diameter bits engineered for precise small-diameter drilling. These twist-style drill bits are manufactured to DIN 338 standards and combine a heavy-duty web construction with 5% cobalt in the matrix to increase heat and abrasion resistance. The 135° split point design reduces bit walk and starts cutting immediately, making the set suitable for demanding metalworking tasks where accurate 1 mm holes are required.
Advantages
The high-cobalt composition improves durability and performance when drilling abrasive or heat-generating materials. Heavy-duty web construction enhances strength and reduces the risk of breakage during push or torque loads. The 135° split point minimizes wandering at contact and ensures faster initial penetration without frequent repositioning. Compliance with DIN 338 ensures consistent geometry and reliable results across both pieces in the set.
Suitable for
 Fine metalworking and fabrication
 Electronics and PCB work requiring precise small holes
 Model making and precision hobby applications
 Drilling stainless and hardened metals where abrasion resistance is important
Key specifications
 Type: Twist drill bit
 Diameter: 1 mm
 Overall length: 34 mm
 Point angle and style: 135° split point
 Material enhancement: 5% cobalt for improved heat and abrasion resistance
 Shank type: Cylindrical shank
 Quantity: 2 pieces
 Manufacturing standard: DIN 338
How to use
Secure the 1 mm twist drill bit in a suitably sized chuck, ensuring concentric alignment and firm clamping. Use appropriate cutting speed and feed for small-diameter drilling in metal—lower speeds and steady, light feed reduce bit wear and risk of breakage. Apply cutting fluid or lubricant when drilling stainless or hardened steels to reduce heat buildup and improve chip evacuation. Back out the bit periodically to clear chips when drilling deeper holes and avoid excessive side loading.
Usage recommendations
For best results, start with a small pilot or use a center punch to prevent initial walk, maintain steady axial pressure, and use coolant when drilling abrasive or heat-sensitive materials. Store the bits in a protective case to prevent damage to the 1 mm cutting edges.

## Specifications

| Feature | Value |
|---|---|
| Length | 34 mm |
| Proper use | Drill |
| Carrying case | Yes |
| Working length | 12 mm |
| Suitable for materials | Stainless steel |
| Drill bit diameter | 1 mm |
| Shank shape | Cylindrical shank |
| DIN compliance | 338 |
| Point angle | 135 ° |
| Drill bit material | High-Speed Steel (HSS) |
| Number of drill bits | 2 pc(s) |
| Drill bit type | Twist drill bit |

## FAQ

### How much does the Irwin 10502507 twist drill bit 1 mm (2 pcs) cost, and is it available for purchase?

The price is 3.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 Wednesday 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/12098710/67639336_large.webp