According to LoggerHead Tools, their family of 3 Bionic Wrenches, which include a 6", 8" and 10" wrench, can replace 38 SAE and metric wrench sizes from 1/4" to 1-1/4" or 7 to 30 mm. These tools team the versatility of an adjustable wrench with the simplicity of pliers to automatically size and grip a wide range of nuts and bolts. According to the company, these wrenches:
Have 6 steel jaws to converge and actively distribute force on all sides (rather than the corners) of a nut or bolt when the cushioned, ergonomic handle is squeezed.
Don't slip or round off nuts or bolts.
Eliminate the necessity to find an exact wrench size.
Exhibit small, lightweight and portable construction that is easy to use.
Avoid locks, knobs and other mechanisms to form an intuitive, universal design.
Can operate on softer materials that traditional wrenches frequently damage, such as plastic, copper and aluminum.