Wera 020110 JOKER 6004 4 Set 1 Self-Setting 4 Pce Adjustable Spanner Set 7-19mm
The adjustable Joker 6004 is the universal wrench tool. Self-setting, Gripping & Ratcheting. It should automatically adjust to the different screw sizes. Many users wish to have a universal tool with the widest possible range of applications.