Wera 6004 Joker Self Setting Adjustable Spanner

The Wera 6004 Joker M is the 190mm mid-size self-setting adjustable spanner, striking an excellent balance between versatility and reach for a broad range of trade and workshop applications. At 188mm in overall length, this model covers fastener sizes from 13–16mm and 1/2–5/8" imperial — bridging the gap between the smaller S and larger L variants. The Joker M features the same self-setting jaw technology found across the range, automatically and continuously adjusting to the correct fastener size upon contact with no manual intervention required. The integrated lever mecha