A rake (Old English raca, cognate with Dutch raak, German Rechen, from the root meaning "to scrape together," "heap up") is a broom for outside use; a horticultural implement consisting of a toothed bar fixed transversely to a handle, and used to collect leaves, hay, grass, etc., and, in gardening, for loosening the soil, light weeding and levelling, removing dead grass from lawns, and generally for purposes performed in agriculture by the harrow.
Large "mechanized" versions of rakes are used in farming. They are usually called hay rakes, and are built in many different forms (e.g. star-wheel rakes, rotary rakes etc.) Where farming is not mechanized various forms of hand rake are used.
A tool is any physical item that can be used to achieve a goal, especially if the item is not consumed in the process. Informally the word is also used to describe a procedure or process with a specific purpose. Tool use by humans dates back millions of years, and other animals are also known to employ simple tools.
Tools that are used in particular fields or activities may have different designations such as "instrument", "utensil", "implement", "machine", or "apparatus". The set of tools needed to achieve a goal is "equipment". The knowledge of constructing, obtaining and using tools is technology.