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wera_05020100001

WERA 6004 Joker S self-adjusting spanner, 10-13 x 7/16-1/2" x 154 mm - 05020100001

Supplier number: WERA 05020100001 | EAN 4013288211729
Recommended Retail Price €73.79
33.80 tax incl.
€27.93 excl. VAT (incl. all environmental contributions)
On stock - immediately available | we have 2 products in stock.

  • Ordered before 20:00 - delivered as of 06/10/2026
  • Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
  • Delivery by DHL
  • Delivered from Belgium

Fast and versatile fastening with the Wera 6004 Joker S

Practical benefits
  • Automatic and continuous adjustment: You automatically grip metric and imperial sizes from 10 to 13 mm using the self-adjusting parallel jaws.
  • Secure grip without slippage: The integrated lever mechanism clamps securely onto hexagon bolts, preventing surface damage and rounding of edges.
  • Smooth ratcheting in tight spaces: You work continuously without disengaging the wrench thanks to the mechanical ratchet action and a 30° return angle.

In a nutshell

The right choise for

With the Wera 6004 Joker s self-setting spanner, you instantly grip the right size without manual adjustment. The parallel jaws automatically and continuously adapt to all metric and imperial dimensions from 10 to 13 mm (7/16" to 1/2"). Its integrated lever mechanism clamps securely onto hexagon fasteners, preventing surface damage and the rounding of bolt heads. Fasten smoothly in confined spaces thanks to the mechanical ratchet function and a tight 30° return angle that allows continuous work without removing the tool. Measuring 154 mm in length, this chrome-plated spanner replaces several individual tools to reduce weight and bulk in your tool bag.



€33.80
In stock - tax incl.

Product information

Key features according to our expert

  • Width across flats 1: 10 mm
  • Length: 154 mm
  • Non-sparking: No
  • VDE approved: No
  • With safety colour code 1000V: Not applicable
  • Surface treatment: Chrome plated
  • Width across flats 2: 13 mm
  • Product Range: Wera Joker

Scope of delivery

  • 6004 Joker S Self-setting spanner, 10; 11; 12; 13 x 7/16; 1/2" x 154 mm

Product description

Many users wish to have a universal screwdriving tool with the widest possible range of applications. It should be a single tool for multiple metric and imperial dimensions. It should automatically adjust to the different screw sizes. It should be safe to grab without damaging anything and should allow for high working speeds. With its continuous and parallel jaws the Joker 6004 replaces several single spanner sizes. The required size is automatically and continuously set when attaching the tool to the hexagon bolt or screw. The integrated lever mechanism securely clamps the hexagon screw or bolt between the jaws, which significantly reduces the risk of slippage or damage. The ratchet feature ensures fast and consistent screwdriving without removing the tool. By using the corner-width rectangular prisms, a back-pivoting angle of only 30° can be achieved. The single-arm design, in conjunction with the ratchet feature and the corner-width prism, makes it possible to work even in confined spaces. The adjustable Joker 6004 is the universal screwdriving tool. Self-setting. Gripping. Spanning.

  • For hexagon screw heads and bolts with wrench sizes 10.0; 11.0; 12.0; 13.0 (metric)
  • For hexagon screw heads and bolts with wrench sizes 7/16"; 1/2" (imperial)
  • Automatically and continuously gripping hexagon screws and bolts
  • Lever mechanism upon gripping prevents slipping and damage
  • With mechanical ratchet functionality for fast and consistent screwdriving without removing the spanner

Application

  • Hexagon screw heads and bolts with wrench size 10,0; 11,0; 12,0; 13,0 (metric) and 7/16"; 1/2" (imperial)

Design

  • Self-setting spanner with ratchet function; size-adjustable open end side, parallel smooth jaws; with 30° return angle due to the corner-width rectangular prisms in the open end; hole for hanging

Features and benefits

  • With its automatically and continuously gripping parallel jaws the Joker spanner 6004 covers all dimensions in the respective field of application. The tool automatically finds the required size when placed on the bolt or screw, no setting required.
  • The parallel smooth jaws of the Joker 6004 allow surface pressure and can thus prevent rounding of the bolt or screw head, which can occur during power transmission via the corners.
  • The ratchet feature in the jaw ensures fast and consistent screwdriving without removing the tool.
  • The corner-width rectangular prisms in the jaw allow a return angle of only 30°.
  • Thanks to its hole the Joker can be neatly hung on the workshop wall.

All Features

Width across flats 1
10 mm
Length
154 mm
Non-sparking
No
Vde approved
No
With safety colour code 1000v
Not applicable
Surface treatment
Chrome plated
Width across flats 2
13 mm
Product range
Wera Joker
  • Brand WERA
  • EAN 4013288211729
  • Supplier number WERA 05020100001

Frequently asked questions about this product

Answered by specialists
Which fastener sizes does this self-setting spanner cover?
The spanner adjusts automatically and continuously to metric sizes from 10 to 13 mm and imperial sizes from 7/16" to 1/2".
How does this spanner prevent damage to bolt heads?
The smooth, parallel jaws clamp securely onto the flats using an integrated lever mechanism, preventing rounding of edges.
Does the Wera 6004 Joker S have a ratcheting function?
Yes, the jaw mechanism provides a ratcheting action with a return angle of 30°, allowing fast screwdriving without removing the tool.
Is this tool insulated for electrical work?
No, this spanner is not VDE-tested and is not insulated for live electrical work.
What is the overall length of this spanner?
The overall length of the 6004 Joker S is 154 mm.
Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

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