Just as the Joker in a deck of cards fits any value or suit the latest Wera 6004 Joker Self Setting Spanner is designed for universal application. Wera brings you the best in automatic jaw sizing for both metric and imperial sizes, consistent bolt head grip and superb power transfer in a versatile ratchet lever wrench that is both ergonomic and precision engineered.The adjustable Joker 6004 covers all Metric and Imperial dimensions for its given size range.Continuous Grip Of Hexagon Screws And Bolts.Lever Mechanism When Gripping Avoids Slips And Damage.Ratchet Mechanism gives fast and consistent screwdriving without removing the wrench.Revolutionary Corner-Width Rectangular Prisms Jaws give a return angle of only 30 degreesThe adjustable Joker 6004 covers all metric and imperial dimensions within it given size range, and with spanner sizes from XS XXL there s a Joker Self Setting Spanner to meet your needs.Specially designed jaws and ratchet lever mechanism provides a continuous grip