nata hatchet
The nata is a Japanese tool for use in gardening and forestry, similar to that of a machete or bushknife. It is used to chop kindling, cut or prune trees and bushes, and for splitting smaller logs, and debarking. Nata are normally sharpened only on the right side of the blade, so they can be used to prune branches right at the stem or trunk of a tree.