Moveable jaw works on any 4 or 6 point fastener up to 15/16-Inch Smooth ratcheting action is intuitive and easy to use Unique handle design accomodates a wide variety of hand sizes and shapes Ratcheting on/off switch allows wrench to also be used as a traditional adjustable wrench Handle size and shape promotes proper use of tool The all new Crescent ratcheting adjustable wrench makes quick work of your fasteners with the ratcheting action and the ability to tackle 4 or 6 point fasteners up to 1-1/4-Inch, all in one wrench. In addition if you prefer to use the wrench in a traditional form just flip the on/off switch to turn off the ratcheting. And of course to complete the tool we made sure it is comfortable in your hand.
The manufacturer commented on the review belowSee comments As a retired mechanical engineer and collector of hand tools I decided to investigate this Crescent update on a 90-year-old adjustable-wrench concept. I have one of what I believe to be the original ratcheting adjustable wrench (to see the original perform a search for U.S. Patent 1,469,533). That tool’s patent was dated Oct. 2, 1923 and awarded to Henry D. Rahli..