# Twist drill bit IRWIN 10502538 5 pcs 1 cm diameter

**URL:** https://aio.lv/en/product--oem-02-100--11016380
**Data updated:** 2026-03-31 13:04 (EEST)
**Category:** Drill Bits
**Manufacturer:** OEM
**Manufacturer code:** 02-100
**EAN:** 5706915000993
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 38.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-02-100--11016380

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The IRWIN 10502538 twist drill bit set includes 5 pieces with a diameter of 1 cm. Designed for drilling, these bits provide precision and durability for various materials. Ideal for both professional and DIY projects.

## Long description

The IRWIN 10502538 twist drill bit set contains five HSS cobalt bits with a 10 mm (1 cm) diameter engineered for drilling metal and other demanding materials. Each bit is manufactured to DIN 338 standards and incorporates 5% cobalt for improved heat and abrasion resistance. The 135° split point design helps start holes quickly and reduces walking, while the heavy-duty web construction increases strength and durability during high-torque work.
Advantages
These HSS cobalt drill bits offer enhanced performance when cutting hard or heat-treated metals thanks to the 5% cobalt content. The 135° split point reduces the need for center punching and improves accuracy at the start of the cut. Heavy-duty web construction and robust material composition increase service life under continuous or heavy workloads, and compliance with DIN 338 ensures consistent geometry and tolerances.
Suitable for
 Drilling through hardened and alloy steels
 Workshops and industrial maintenance tasks
 Metal fabrication and engineering applications
 Professional or advanced DIY projects requiring durable metal drilling tools
Key specifications
 Bit type: Twist drill (spiral fluted)
 Material: High-speed steel with 5% cobalt (HSS-Co)
 Diameter: 10 mm (1 cm)
 Set quantity: 5 pieces
 Point geometry: 135° split point
 Construction: Heavy-duty web for increased strength
 Manufacturing standard: DIN 338 compliant geometry
 Primary application: Tough metal and heat-treated alloy drilling
How to use
Select an appropriate drill speed and feed for the material being drilled; lower speeds and steady pressure are recommended for hardened steels. Secure the workpiece firmly in a vise or fixture to prevent movement. Use cutting fluid or coolant when drilling metals to reduce heat buildup and prolong bit life. Begin drilling with controlled pressure so the 135° split point can engage and center the bit, then maintain consistent feed until the hole is complete. Clear chips frequently to avoid clogging and overheating.
Usage recommendations
For best results when drilling hard or heat-treated metals, use appropriate cutting fluid, moderate spindle speeds, and light to moderate feed rates. Re-sharpening should be done by a qualified service if wear is significant; replace bits if chipping or excessive wear compromises hole quality or safety.

## Specifications

| Feature | Value |
|---|---|
| Length | 133 mm |
| Proper use | Drill |
| Carrying case | Yes |
| Working length | 87 mm |
| Suitable for materials | Alloyed steel, Metal, Stainless steel |
| Drill bit diameter | 10 mm |
| Shank shape | Cylindrical shank |
| DIN compliance | 338 |
| Point angle | 135 ° |
| Drill bit material | High-Speed Steel (HSS) |
| Number of drill bits | 5 pc(s) |
| Drill bit type | Twist drill bit |

## FAQ

### How much does the Twist drill bit IRWIN 10502538 cost, and is it available for purchase?

The price is 46.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 26.06.2026 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 OEM 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 OEM 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/11016380/61676964_large.webp