Doubledown

Gerber launched a folding machete with a very clever design.
During the opening of the blade (butterfly style) a pair of gears ensure that the two halves of the handle rotate synchronously. Once in position the two handle halves lock with an apposite mechanism that really stiffens the handle.

Asada

Ultimate Fixed Blade

Prybird X

Prybird Utility

Truss in Black