The GENEX V3, which combines the frequently used 4, 5, and 6mm hex wrenches into a single tool.
The GENEX V3 is a T-handle wrench that incorporates 5mm and 6mm hex bits, and a 4mm hex wrench in the body. The design concept is "Versatile." It was designed with use cases such as stems, handlebars, cleats, seatposts, and chainrings in mind.