Sling blade

On the East Coast of the United States some farmers call it a bush axe.

The Plover, Wisconsin dialect refers to it as a ditch witch.

Also historically used as a wildland firefighting tool to cut fireline, known as a brush hook.

It is also sometimes referred to as a bush hook in south eastern North Carolina.

It is commonly used by surveying crews and firefighters to clear out heavy undergrowth from trails, as well as by homeowners and gardeners to clear thick brush.