Wera 6004 Joker Self Setting Adjustable Spanner 320mm

About this tool

The Wera 6004 Joker XXL is the largest variant in the range at 320mm, engineered for tackling the biggest fasteners where power and leverage are paramount. With an overall length of 322mm and a jaw range covering 24–32mm and 15/16–1 1/4" imperial, this is the go-to choice for heavy structural, industrial, and mechanical work. Despite its size, the Joker XXL retains all the intelligent features of the 6004 family. The jaws automatically and continuously self-set upon engagement with a hexagon bolt or screw, covering both metric and imperial dimensions. The lever mechanism clamps the fastener firmly to prevent slippage, while the mechanical ratchet keeps work moving at pace without needing to reposition the tool. Even at this scale, the corner-width rectangular prisms achieve a 30° return angle, and the single-arm design aids access in tighter areas than a traditional large spanner would allow. Features and Benefits: • Self-setting jaws automatically grip large metric and imperial hexagon fasteners • Lever mechanism prevents slippage and protects fastener heads • Mechanical ratchet for fast, continuous screwdriving • 30° return angle despite the larger tool size • XXL size provides the leverage needed for heavy-duty industrial and structural tasks Contents: 6004 Joker XXL Self-setting spanner, 24–32mm x 15/16–1 1/4" x 322mm Specifications: • Configuration: 320mm

Retailer description · Tooled Up · Observed 12 Oct 2026. Check the retailer’s listing for full specifications and contents.