A stiff wire brush is useful for cleaning off stubborn dirt and rust by hand. Brushes may have two, three or four rows of wire, and some have a metal scraper attached. Smaller brushes with brass wire are intended for cleaning electrical connections, such as battery terminals. Handles are usually wooden, but some brushes have plastic handles that can be cleaned with degreaser without damage. Clean clogged and greasy wire bristles with petrol.

A wire brush is a tool, consisting of a handle, usually wood or plastic, occasionally bone, and a brush. The brush is usually made from a large number of steel wire bristles. The steel used is generally a high carbon variety and very hard. Other wire brushes feature bristles made from brass or stainless steel, depending on application. Wires in a wire brush can be held together by epoxy, staples, or in some cases one continuous wire. Some types of wire brushes can also be used on an angle grinder or electric drill.

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