I am a knife collector of sorts. Like many other tools knives usually have a specific use and work well in that role. So I began looking for a knife that I could use for gardening. From opening a bag of compost to harvesting or even cutting fruits. After years of looking around, I finally found it.
Opinel is a French company. They have used the same design for their knives since 1890!
Not only is it a solid knife with a locking ring, but it comes in a variety of blade sizes from 6 cm to 12 cm (about 2 1/4 in to 4 3/4 in). I personally like the number 8, which has a blade just barely over 3 inches. Its fits in my pocket well, but is large enough to do most jobs on our farm. 
Not only does this knife have a great beachwood handle, but it is also made in France by a family owned company.
So if you are looking for a good knife in the garden, on a farm, or just to whittle with, check out this classic beauty!