
A very useful tool for getting to the 'root' of the problem. If you are having trouble deciding between stainless steel and carbon steel go with the carbon option. I got the stainless version and still expect to get much use [many years] from it even though I bent it while weeding near a concrete walkway.
Don't be surprised how much this looks like a hunting or survival knife :)
With some practice you'll soon be scoring roots 6" and longer. Get more detail about GrowTech KNKDA1S Hori Hori Knife.