# Square bit set Bosch Vierkant-Bit 3 extra hard C 6.3, 3 pieces

**URL:** https://aio.lv/en/product--bosch-2608521110--10796344
**Data updated:** 2026-02-13 15:34 (EET)
**Category:** Home Goods Accessories
**Manufacturer:** Bosch
**Manufacturer code:** 2608521110
**EAN:** 3165140447270
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-2608521110--10796344

## 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

Bosch Vierkant-Bit 3 extra hard C 6.3 is a set of three square bits designed for driving square-head fasteners. Supplied as a 3-piece set, these extra hard bits suit applications requiring higher durability and wear resistance. They fit standard 6.3 mm (1/4") bit holders and are intended for use with manual drivers and power tools for assembly, maintenance and repair tasks.

## Long description

Bosch Vierkant-Bit 3 extra hard C 6.3, 3 pieces is a compact set of square-drive bits engineered for driving square-head fasteners. The three-piece assortment is made from a hardened steel grade to provide increased wear resistance and maintain bit geometry under repeated torque. Each bit is designed to fit a standard 6.3 mm (1/4") bit holder, making the set compatible with common manual drivers and powered screwdrivers or impact drivers used in assembly, maintenance and repair work.
Advantages
The extra-hard material construction improves lifespan in high-torque and frequent-use scenarios while reducing deformation at the contact points. Uniform 6.3 mm (1/4") shanks ensure compatibility with common bit holders and adapters. The small, three-piece format simplifies storage and selection for specific fastener sizes and keeps replacement bits readily available on the job.
Suitable for
Driving square-head screws in furniture assembly and joinery
Maintenance and repair tasks on equipment using square-drive fasteners
General workshop and on-site fastening where compact bit sets are preferred
Key specifications
Bit type: square (Robertson) drive
Material hardness: extra hard/hardened steel
Shank diameter: 6.3 mm (1/4") standard
Pieces in set: 3
Intended use: manual drivers and compatible power tools
How to use
Select the appropriate square bit size for the fastener and insert the 6.3 mm (1/4") shank securely into the bit holder of a hand driver or power tool. Apply steady axial pressure to seat the bit in the screw recess, then operate the driver at a controlled speed to avoid cam-out. For power tools, start at low speed to ensure correct engagement, and increase torque gradually as needed. After use, inspect the working tip for wear and replace the bit if the square profile shows rounding or deformation.
Usage recommendations
Use the bits with the correct driver torque setting and avoid excessive side loading. Store the set in a dry place and replace bits that exhibit visible wear to maintain fastening quality and reduce risk of screw damage.

## FAQ

### How much does the Bosch Vierkant-Bit 3 extra hart C 6.3 — 3 pcs cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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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