The Wera 7870 Joker L Selbst-Adjustable Open-End Wrench is an exceptional tool designed for various fastening applications. This self-setting insert spanner is particularly adept at accommodating a range of hexagon screw heads and bolts, ensuring versatility in your toolbox.

One of the key features of this wrench is its ability to handle sizes from 16 mm to 19 mm as well as 9x12 mm. This flexibility makes it suitable for a broad array of tasks while providing a reliable solution for different fasteners.

Key Highlights:

• Ratcheting Mechanism: Yes, with a ratcheting action (model 6004) that improves efficiency.
• Self-Adjusting Feature: Allows the tool to automatically fit various sizes without manual adjustments.
• Profile-Friendly Design: Reduces slipping on fasteners, enhancing usability.
• 30° Return Angle: Enables quick repositioning for continuous work.

Additionally, the compact dimensions of the wrench—approximately 77.7 mm in length—coupled with its lightweight design (approx. 145 grams) facilitate easy handling and storage. The Joker series is renowned for its anti-slip effect and practical holding functions that prevent fastener loss, ensuring a safe and efficient fastening experience.

Overall, this tool is ideal for anyone in need of a durable and efficient fastening tool, providing the precision and ease of operation required for medium-sized hex bolts and screws.