We here in northern scandinavia have our own version of pair of knifes. The basic idea for that kind of pair comes from our native saami people.
The smaller one (blade lenght 3,5") works very well for whittling and as well, for example, skinning moose sized animal. The bigger one (blade lenght 7,5") works like a small axe and is very usefull when slicing bigger animals dead body: