Wera 6004 Joker Self-Setting Spanners - Wera 05020102001, This Wera 6004 Joker Self-Setting Spanner is a single tool that automatically adjusts to a wide range of metric and imperial sizes. This universal spanner can be used for both multiple metric and imperial sizes, making it possible to use a single tool for the widest range of applications. The spanner automatically adjusts to different fixing sizes, the continuous and parallel jaws replacing several single spanner sizes. The tool has an integrated lever mechanism that securely clamps the fixing between the jaws, significantly reducing the risk of slipping or damage. The ratchet function ensures fast and consistent use without removing the tool and, thanks to the corner-width rectangular prisms, a back-pivoting angle of only 30° can be realised. The single-arm design in conjunction with the ratchet function and the corner-width prism make it possible to work even in confined spaces. Wera 05020102001 6004 Joker XXL Self-Setti