Technicians working in the field of HVAC R perform variety of mechanical, electrical, pneumatic, and refrigerating procedures that require variety of HVAC R hand tools.
Wrenches are one of the basic tools needed to perform installation, maintenance and repair of HVAC R systems in the home and on the commercial level.
Fasteners, couplings, refrigerant lines, nuts and other parts of HVAC R systems are made of brass, copper, metal, and alloys that can be damaged easily.
The use of wrenches goes back to the century when tools were needed to adjust sections of armor for war and was done by attendant.
The wheels of coaches and wagons then began to need premade wrenches to tighten the nuts of pulling harnesses, tail gates, and axles.
The industrial explosion of the century then required the expansion of the variety of wrenches to work on machinery..
The sockets used with these kinds of wrenches are 6-point standard, 12-point standard, deep 12-point standard, 6-point swivel and metric sizes..
In UK, they are known as wrench, shifter, shifting spanner, or spanner.
The following is list of tools that may be needed in HVAC R field.
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