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Wera 05020100001 6004 Joker S self-adjusting open-end wrench, 10-13mm (7/16-1/2)

Name: Wera 05020100001 6004 Joker S self-adjusting open-end wrench, 10-13mm (7/16-1/2)
Brand: WERA
SKU: 4013288211729
Price: 26.85 GBP
Availability: InStock
Rating: 4.56 (18 reviews)

#1 in sales

Length: 15.4 cm

11.7 cm

15.4 cm

22.4 cm

Sold by DVS Power Tools Ltd

Product information

Description

General description

The Wera 6004 Joker S (05020100001) is a compact, self-adjusting open-end wrench that automatically adapts to a range of metric and imperial sizes between 10–13 mm (7/16'–1/2'). Designed for one-handed operation, it features a unique lever mechanism that ensures secure clamping and a ratcheting action that accelerates work in confined spaces.

Technical specifications

Model: 05020100001

Wrench Size Range: 10–13 mm / 7/16'–1/2'

Jaw Design: Self-adjusting with parallel jaws

Mechanism: Lever-controlled automatic gripping

Function: Integrated ratcheting for quick back-and-forth motion

Length: Approx. 105 mm

Finish: Matt chrome-plated for corrosion resistance

Application: Ideal for mechanical, plumbing, and mobile service work

Usage

This Joker S wrench eliminates the need to constantly search for the correct wrench size, saving time and reducing tool weight on the job. Its slim, compact profile makes it especially useful in tight or awkward spaces. The automatic adjustment and secure clamping reduce slipping and rounding of fasteners, improving safety and efficiency.

Other information

Includes: 1 x Wera 6004 Joker S Self-Adjusting Wrench (10–13 mm / 7/16'–1/2')

Features

Brand
WERA
Length
15.4 cm
Pcs per pack
1
NF certification
NF132
Warranty
3 year(s)

Customer reviews

4,6

/ 18 Reviews

Reviews verified by ManoMano

MManoMano Customer

Published on 25/02/2026, United Kingdom

TThomas

Pro Customer

Published on 14/04/2025, Germany

Just like the little keys.

MManoMano Customer

Published on 30/11/2024, Germany

Very satisfied

MManoMano Customer

Published on 13/02/2024, Germany

Great key

HHorst

Published on 16/01/2023, Germany

Ideal for small tool boxes with just a few tools that can be used very universally and flexibly. The Wera Joker is not cheap, but it is good value, replaces several open-end wrenches and is also suitable for screws in between sizes. I often use it for bicycle repairs on ice.

1 person found this helpful

DDaniel

Published on 25/02/2022, Spain

Simply Wera, unique and quality brand

1 person found this helpful

Advice from

Spanner and socket set buying guide

Spanners and socket sets are essential to any tool kit. Often made of chrome vanadium, tools like open-ended spanners, socket wrenches and ratchet spanners all come in different sizes while adjustable spanners offer a range of sizes in one tool. Read on to find the right tool type for your nuts or bolts!

Read our guide

Visit the WERA store

We firmly believe that our tools make our users' lives easier, safer and "full of joy". We are never satisfied with existing standards. There are many screwdriving tools. But unlike others, we don't believe that tools have been invented to the end. We are constantly looking for new ideas. We think differently. We question. And in doing so, we develop screwdriving tools such as the Zyklop ratchet or the Joker open-end spanner that turn the tried and tested on its head. With over 3,000 different tools to choose from, we are sure to have the right tool for you. 750 Wera Tool Rebels have fun reinventing screwdriving tools every day and working on solutions for you.   We love innovation. We love design. We love rock 'n' roll.

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Wera 05020100001 6004 Joker S self-adjusting open-end wrench, 10-13mm (7/16-1/2)

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Description

General description

Technical specifications

Usage

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Features

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Spanner and socket set buying guide

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