Wera Joker L Self‑Setting Insert Spanner 16–19 mm, 9×12 mm Drive, 147 g

The Wera Joker L Self‑Setting Insert Spanner is designed for rapid, reliable use with torque wrenches and ratchets. Its 9×12 mm square drive fits standard torque tools, while the Joker parallel‑jaw technology automatically clamps any fastener within the 16–19 mm range, removing the need to swap spanners for each size. The head provides a 30° return angle, ideal for work in confined spaces where swing clearance is limited.

Key Features

• Wide size coverage: 16–19 mm fasteners
• Self‑setting Joker jaw: grips any size in the range automatically
• 30° return angle: perfect for tight‑space applications
• Universal compatibility: works with 9×12 mm square‑drive torque wrenches and ratchets
• Tool reduction: replaces several individual spanners with one versatile head

Why choose Joker L?

The innovative parallel‑jaw design ensures consistent torque transmission and reduces the time spent selecting the correct spanner. Its compact head and short return angle allow you to reach bolts and screws in cramped engine bays, machinery housings, or other hard‑to‑access locations. Built to Wera’s high‑quality standards, this insert spanner delivers durability and precision for professional mechanics, engineers, and DIY enthusiasts alike.