# Twist drill bit Bosch HSS hex-shank 4 mm

**URL:** https://aio.lv/en/product--bosch-2608577052--3879075
**Data updated:** 2025-12-29 13:50 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** Bosch
**Manufacturer code:** 2608577052
**EAN:** 3165140858809
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-2608577052--3879075

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.99 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Bosch HSS hex-shank twist drill bit features a 4 mm diameter, designed for precision drilling. Its hex shank ensures a secure grip in the chuck, preventing slippage during use. Ideal for metal and wood applications, this durable drill bit is packaged in a convenient blister for easy storage and handling. Perfect for both professional and DIY projects.

## Long description

Twist drill bit Bosch HSS hex-shank 4 mm is a high-strength HSS metal drill designed for precise drilling in metal and suitable for wood. The 4 mm diameter and 1/4-inch (6.35 mm) hex shank provide secure clamping in chucks and impact drivers, while an oxide-coated flute reduces wear. The bit is manufactured to DIN 338, Type N flute geometry, with a 135° split-point tip and diameter tolerance h8 for accurate centring and cutting.
Advantages
The solid HSS construction and precision grinding give long life and consistent cutting performance. An oxide-coated flute improves chip evacuation and wear resistance. The 135° split-point tip ensures active cutting and reliable self-centring, reducing walking on the workpiece. The 1/4-inch hex shank allows quick, slip-free insertion into standard chucks and impact driver adapters.
Suitable for
Drilling holes in metal sheets, steel and non-ferrous metals
Light woodworking and drilling in composite materials
Use with impact drivers, cordless drills and drill chucks that accept 1/4-inch hex shanks
Key specifications
Brand: Bosch
Material: High-speed steel (HSS)
Shank: 1/4-inch (6.35 mm) hex
Diameter: 4 mm
Tip angle: 135° split-point
Flute finish: Oxide-coated
Standard: DIN 338, Type N
Diameter tolerance: h8
MPN: 2608577052
EAN: 3165140858809
How to use
Mark the drilling point and clamp the workpiece securely. Fit the 4 mm Bosch HSS hex-shank drill bit into the chuck or impact-driver adapter until it seats firmly. Start drilling at low speed to establish the centre, then increase speed appropriate to the material while applying steady feed pressure. Use cutting fluid when drilling steel to reduce heat and extend tool life. Clear chips regularly to avoid clogging the flute.
Usage recommendations
For best results in metal, use cutting lubricant and moderate speed; ensure the workpiece is well supported to prevent bit breakage. Replace the bit when wear or dulling increases cutting force or decreases hole accuracy.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Grey, Stainless steel |
| Length | 83 mm |
| Proper use | Drill |
| Package type | Blister |
| Working length | 43 mm |
| Suitable for materials | Cast iron, Steel |
| Drill bit diameter | 4 mm |
| Shank diameter | 6.35 mm |
| Shank shape | Hex 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 Bosch HSS hex-shank 4 mm cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 16.07.2026 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. 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

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