I picked up a little 12" chinese machete for $6 (all it says on the blade is "quarry stone knife" and 440 stainless along with a weird cow's head.), It is actually really nice and in abount 1/8 thick so it chops pretty good. After a few mods like rounding out the choil and re-wrapping the handle in real paracord, it is my favorite machete I own. It has the useless sawteeth on the back as well a little notch in front of the teeth. What is it used for? Is it actually usefull or should I sharpen it into some sort of line cutter? If it is what I think it is, Im going s*** myself laughing.