Master Mechanic 3 Piece Adjustable Wrench Set Featuring 10-Inch, 8-Inch And 6-Inch Wrenches. All Wrenches Are Macine Finished And Coated With A Proprietary Rust Preventative. The Handles Are Black Single Dipped And Textured To Improve Grip And Comfort. The 10-Inch Has A Maximum Opening Demension: 1.13-Inch. The 8-Inch Has A Maximum Opening Demension: 0.95-Inch. The 6-Inch Has A Maximum Opening Demension: 0.76-Inch. These Wrenches Meet Or Exceed All Of Ansi Standards.