16 inch length capacity: up to 3 3/4 inches Patented push button adjustment mechanism maintains jaw size position until reset saves time Self gripping jaws for fast operation with one handed downward pressure no handle squeezing Parallel jaw shape grips fasteners on four sides to prevent rounding of nut or bolts pliers won t slip Guard prevents pinching of operator s fingers Minimum 11 position adjustment provides a precise fit on the work piece Forged from oil hardened chrome vanadium electric steel for greater strength