# Wera 840/4 Z Hex Screwdriver Bit, 4 mm, 89 mm Length, 1/4" Hexagonal Shank

**URL:** https://aio.lv/en/product--wera-05059630001--1983393
**Data updated:** 2026-07-11 23:01 (EEST)
**Category:** Other goods
**Manufacturer:** Wera
**Manufacturer code:** 05059630001
**EAN:** 4013288094254
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.49 €
**Prices and availability valid until:** 2026-08-12 23:59
**Price without VAT (21%):** 33.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wera-05059630001--1983393

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

The Wera 840/4 Z is a high-quality 4 mm hexagonal screwdriver bit designed for professional use. Featuring an 89 mm length and a standard 1/4 inch hexagonal shank, this bit is compatible with a wide range of power tools and bit holders. Its durable construction ensures reliable torque transmission and long service life, making it an essential tool for precise fastening tasks in various industrial and mechanical applications.

## Long description

The Wera 840/4 Z Hex screwdriver bit is a professional-grade tool engineered for precision and durability in demanding fastening applications. With a 4 mm hexagonal tip and an extended 89 mm length, this bit provides excellent reach and access to recessed screws. It features the specialized Hex-Plus profile, which increases the contact surface area within the screw head, significantly reducing the risk of rounding out the screw and ensuring efficient torque transmission.
Advantages
The primary benefit of this bit is the Hex-Plus geometry, which prevents the common notching effect that often damages screw heads during high-torque operations. By distributing pressure more effectively, the bit protects the integrity of the fastener while allowing for higher force application. The tough, viscous material composition ensures the bit resists premature wear and breakage, providing a long service life even under heavy industrial use. Its standard 1/4 inch hexagonal shank makes it highly versatile, allowing for quick and secure attachment to a wide variety of power tools and manual bit holders.
Suitable for
Assembly of mechanical components
Industrial maintenance and repair tasks
Furniture assembly requiring hex fasteners
Automotive interior and engine bay work
General construction and workshop fastening
When it may not be suitable
This bit is specifically designed for 4 mm hexagonal socket screws and will not fit other fastener types such as Torx, Phillips, or slotted screws. It is not intended for use with impact drivers that exceed the torque ratings of standard manual or power tool bit holders, as extreme impact forces may cause premature wear.
Key specifications
Tip size: 4 mm Hex
Length: 89 mm
Shank: 1/4 inch hexagonal
Profile: Hex-Plus
Material: Tough, viscous steel
Compatibility: Holders as per DIN ISO 1173-F 6.3
How to use
To use the Wera 840/4 Z bit, insert the 1/4 inch hexagonal shank into a compatible bit holder or power tool chuck until it clicks into place. Ensure the bit is fully seated in the screw head before applying torque. Maintain axial pressure to keep the bit engaged with the fastener, and operate the tool at a controlled speed to prevent cam-out or damage to the screw head.
What to consider before purchase
Verify the size of your hex socket screws to ensure a 4 mm bit is required.
Check the compatibility of your tool holder with 1/4 inch hexagonal shanks.
Consider the depth of the screw access to ensure the 89 mm length is appropriate for your specific task.
Usage recommendations
For optimal performance and to extend the life of both the bit and the fasteners, always ensure the bit is clean and free of debris before use. Replace the bit if you notice signs of deformation or wear on the hexagonal edges.

## Specifications

| Feature | Value |
|---|---|
| Length | 89 mm |
| 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) | 3 |
| Slot screwdriver bits (metric) | 4 |

## FAQ

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

The price is 40.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 30.07.2026 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 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

### Where can I download the instructions for Wera 840/4 Z Hex Screwdriver Bit 4 mm?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1983393/58148908_large.webp