This can be the leading cause for foul HVAC odors for many homeowners, which raises concerns about indoor air quality. Another indicator of an indoor air quality problem is the smell of dirty socks. Although this smell may be coming from the air conditioning unit, it is not actually the unit that is the problem.
Device. 1  Ratchet (device), a mechanical device that allows movement in only one direction. 2  Ratchet, a tool also known as a socket wrench. 3  Ratchet (instrument), a type of music instrument.
Sockets and ratchets help you get the job done. Perfect for tightening and loosening nuts, bolts and other fasteners, ratchet wrenches and a good set of sockets are a must-have in any toolbox. We offer a variety of sockets, ratchets and socket sets to meet the needs of any project youâre working on.