Wrench Wera 7880 Joker L Chrome Chromium-vanadium steel 16-19 mm

Wera 7880 Joker L is a self-setting insert spanner for hexagon screw heads and bolts, designed for use with Click-Torque X and XP series torque wrenches that accept a 14x18 mm square mounting. Made of chrome–vanadium steel, the tool covers all metric and imperial dimensions within its working range and replaces multiple single spanner sizes thanks to its continuous, parallel jaws. The required size is set automatically when the tool is placed on the hexagon bolt or screw, while an integrated lever mechanism securely clamps the fastener to reduce slippage and damage. A built-in ratchet function allows fast, consistent screwdriving without removing the spanner; using the corner-width rectangular prisms in the jaws enables a return angle of only 30°.

Advantages

The adjustable Joker insert combines several wrench sizes in one compact tool, reducing the number of individual spanners required. Automatic continuous setting and a lever clamp provide secure engagement of hexagon screws and bolts, lowering the risk of rounding or slipping. The mechanical ratchet function speeds up repetitive tightening or loosening operations, and the 30° return angle improves access in confined spaces. Constructed from chrome–vanadium steel and compatible with Click-Torque X/XP torque wrenches (14x18 mm), the tool is durable and suitable for professional use.

Suitable for

• Tightening and loosening hexagon bolts and screws in maintenance and repair work
• Use with Click-Torque X and XP series torque wrenches that have 14x18 mm mounting
• Situations where multiple spanner sizes would otherwise be required
• Work in confined spaces where a small return angle is needed

Key specifications

• Manufacturer: Wera
• Model: 7880 Joker L
• Mounting: 14x18 mm square head insert
• Material: Chrome–vanadium steel
• Covered sizes: continuous coverage of relevant metric and imperial hexagon dimensions in the working range
• Compatibility: Click-Torque X and XP torque wrenches with 14x18 mm mounting
• Features: automatic continuous adjustment, lever clamp, mechanical ratchet, 30° return angle with jaw prisms
• MPN: 05020171001
• EAN: 4013288229359

How to use

Attach the 14x18 mm square head of the Joker insert to the drive of a compatible Click-Torque X or XP torque wrench. Place the tool over the hexagon screw or bolt; the jaws will automatically and continuously adjust to the fastener size. Press the integrated lever or allow the mechanism to engage so the jaws clamp the fastener securely. Operate the torque wrench as required; the mechanical ratchet lets you turn the fastener without removing the insert between strokes. To change fasteners, disengage the lever and remove the tool.

Usage recommendations

Use the Wera 7880 Joker L only with torque wrenches that accept a 14x18 mm square mounting. Ensure the lever mechanism fully engages and the jaws are seated squarely on the fastener before applying torque. Do not exceed the torque wrench manufacturer’s specified torque limits. Inspect the jaws for wear or damage before use and replace the tool if deformation is present.