# Drill Bit Bosch 4.0 mm HSS (model 2609255942)

**URL:** https://aio.lv/en/product--bosch-2609255942--10555774
**Data updated:** 2026-02-12 21:59 (EET)
**Category:** Drill Bits
**Manufacturer:** Bosch
**Manufacturer code:** 2609255942
**EAN:** 3165140390118
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-2609255942--10555774

## 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

Bosch 4.0 mm HSS drill bit (model 2609255942) is a high-speed steel cutting tool designed for drilling precise 4.0 mm holes. Suitable for use with handheld drills and drill presses, it provides reliable performance for metalworking and general-purpose applications. Compact and durable, it fits standard chucks and is intended for accurate, repeatable drilling tasks.

## Long description

Bosch 4.0 mm HSS drill bit is a high-speed steel cutting tool engineered for drilling precise 4.0 mm diameter holes. Designed for use with handheld electric drills and drill presses, this drill bit delivers consistent, repeatable results when working with a variety of common metals and general-purpose materials. The compact, straight-shank design fits standard chucks and supports accurate positioning for both single-hole and production tasks.
Advantages
The HSS material ensures good wear resistance and heat tolerance during typical drilling operations in mild steel, stainless steel, and non-ferrous metals. Its ground tip and flute geometry promote controlled chip evacuation and reduce walking at the start of drilling, improving hole quality and dimensional accuracy. The standard straight shank provides secure clamping in most chucks, enabling stable rotation and reduced runout.
Suitable for
 Drilling 4.0 mm holes in sheet metal and thin-walled components
 General workshop tasks using handheld drills or drill presses
 Prototyping and small-series production where repeatable hole size is needed
 Working with mild steel, stainless steel, aluminum and other common metals
Key specifications
 Diameter: 4.0 mm
 Material: High-speed steel (HSS)
 Shank type: Straight shank for standard chucks
 Tip geometry: Ground point for reduced walking and improved centering
 Typical use: Metalworking and general-purpose drilling
How to use
Mark the drilling point and secure the workpiece to prevent movement. Select an appropriate clamping method and insert the straight shank firmly into the drill chuck, tightening to minimize runout. Start at low speed to establish the hole, then increase speed as appropriate for the material being drilled. Apply steady feed pressure, withdraw the bit periodically to clear chips, and use cutting fluid when drilling harder metals to reduce heat and extend tool life.
Usage recommendations
Use the Bosch 4.0 mm HSS drill bit with a suitable cutting lubricant when working with stainless steel or other hard alloys. Replace the bit when wear degrades hole accuracy or when chipping appears on the cutting edges. Store in a dry place to prevent corrosion and keep the shank clean for reliable chuck gripping.

## FAQ

### How much does the Bosch 4.0 mm HSS Drill Bit 2609255942 cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 Bosch 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 Bosch 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/10555774/52718545_large.webp