Wera 6004 Joker Self Setting Adjustable Spanner

The Wera 6004 Joker S is the 155mm self-setting adjustable spanner, offering a versatile and well-balanced size for everyday fastening tasks. Spanning fastener sizes from 10–13mm and 7/16–1/2" imperial at an overall length of 154mm, this model is an outstanding all-round choice for both professional tradespeople and workshop use. The Joker's intelligent self-setting jaw mechanism automatically adjusts to the correct size the moment you engage the tool with a hexagon bolt or screw — covering metric and imperial dimensions without the need for manual setting. The integrated l