When we began to think about open-ended wrenches, we asked ourselves: why does the wrench always have to be flipped over; why does it have an offset design; why does it slip off injuring fingers? The new design of the mouth resulted in a real “Joker” that works even when all other trumps have been played.
Continual repositioning of the wrench, permanent resetting, power adjustments to avoid any risks of injury? That was yesterday. Today, the Joker prevents any slipping downwards from the bolt head with its limit stop. That makes things much easier. And: allows much more force to be applied during screwdriving jobs.
The Joker’s holding function means that nuts and bolts can be directly and reliable applied to where they are needed. Fastening on to the thread can then be done quickly and safely. Any dropping of the nut or bolt can effectively be avoided. There is no need for a time consuming search.
The Joker’s clever double-hex geometry makes for a positive connection with nuts or bolts – it’s a perfect fit. And the exchangeable, hardened metal plate in the Joker’s mouth literally bites itself into the bolt with its extremely hard tips. Both aspects prevent any unpleasant slipping, even at higher torque.
Less can be more. Particularly in those very confined spaces where conventional wrenches with a 60° return angle have to be turned umpteen times to tighten and loosen nuts or bolts. Instead of a 60°, the Joker only has a 30° return angle with a double-hex design. This and the Joker’s straight head mean that any turning of the wrench has become a thing of the past.