By far, my personal favorite tool and EDC blade. Traditionally, this is an Indonesian style blade, one of many styles of kerambits. The styles I choose to make is for combat and everyday use.
The variance in styles I make are as follows:
Smooth, curved, edge with nothing on backside or as pictured – double edged.
Smooth, curved, edge with saw teeth on back side.
Smooth, curved, edge with serrations on back side.