The invention relates to a hand tool or power tool device for cultivating the ground and soil, such as a hoe or hoeing tool, scraper, or the like, essentially comprising a working tool that is releasably or permanently mounted at the front end of a handle or the like which optionally has one or more specific holding zones or grips. The working tool is essentially composed of a bent integral or welded multipart metal strip to form a U-shaped lower section (6), at least part of which is used for cutting, and a shaped upper section to be mounted at the front end (3′) of the handle (3). The strip section extends between the legs of the U-shaped section (6), forms the core of the U, and has a serrated profile including teeth on the opposite longitudinal edges thereof, said teeth being preferably staggered. The device (1) is characterized in that said strip section is sharp at the two opposite longitudinal edges thereof.
