# Screwdriver Bit Wera 840/4 Z SB

**URL:** https://aio.lv/en/product--wera-05136302001--3888755
**Data updated:** 2026-01-13 17:48 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Wera
**Manufacturer code:** 05136302001
**EAN:** 4013288213808
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wera-05136302001--3888755

## 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 Wera 840/4 Z SB screwdriver bit is a high-quality hex bit designed for precision. It features a 4 mm hex tip, a length of 152 mm, and a hexagonal shank size of 25.4 mm (1/4 inch). Ideal for various applications, it comes in a blister package for easy storage and handling.

## Long description

The Wera 840/4 Z SB screwdriver bit is a precision hex bit designed for accurate fastening tasks. It has a 4 mm hex tip and an overall length of 152 mm, paired with a 1/4" hexagonal shank for compatibility with common bit holders and screwdrivers. Packaged in a blister, this bit is intended for reliable insertion into drivers and offers consistent contact with fasteners in assembly, maintenance, and repair operations.
Advantages
This screwdriver bit combines a precisely machined 4 mm hex tip with a standardized 1/4" hex shank, ensuring good fit and torque transfer to compatible holders. The 152 mm length gives extended reach for recessed or hard-to-access fasteners while maintaining control and stability. The blister packaging protects the bit during storage and transport and keeps it readily accessible.
Suitable for
 Assembly tasks requiring a 4 mm hex driver
 Maintenance and repair of machinery with hex fasteners
 Work in recessed or deep-set screw locations where extra reach is needed
 Use with manual or powered bit drivers that accept 1/4" hex bits
Key specifications
 Tip type: 4 mm hex (Hexagon)
 Total length: 152 mm
 Shank type: 1/4" hexagonal shank
 Package: blister pack for single-bit storage
 Material and finish: high-strength tool steel with durable surface treatment
How to use
Insert the 1/4" hexagonal shank into a compatible bit holder, ratchet adapter, or powered driver. Align the 4 mm hex tip with the fastener head and apply steady axial pressure while turning the driver to engage or release the fastener. Use torque control features on powered drivers where available to avoid over-tightening. After use, return the bit to its blister packaging or a suitable storage system to prevent damage and keep it clean.
Usage recommendations
Choose the Wera 840/4 Z SB for tasks that require a precise 4 mm hex interface and extended reach. Verify compatibility with your driver or holder and avoid excessive lateral force to preserve tip geometry. For high-torque or impact applications, use bits and holders specifically rated for impact use.

## Specifications

| Feature | Value |
|---|---|
| Length | 152 mm |
| Package type | Blister |
| Number of bits | 1 pc(s) |
| Screwdrivers/bits tips included | Hex (metric) |
| Shank | Yes |
| Shank size | 25.4 / 4 |
| Shank shape | Hexagonal |
| Hex screwdriver bits (metric) | 4 |

## FAQ

### How much does the Screwdriver Bit Wera 840/4 Z SB cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 52 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 Wera 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 Wera 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/3888755/64232402_large.webp