Pneumatic tools are rated using several metrics:
Free Speed (rpm),
Air Pressure (psi/bar),
Air Consumption (cfm/scfm or m3/min),
Horse Power (hp), and
spindle size. Each individual tool has its own specific requirements which determine their compatibility with air compressor systems.
Flow or
airflow, related to
air consumption in pneumatic tools, represents the quantity of compressed air that passes through a section over a unit of time. It is represented in l/min, m3, at the equivalent value in free air in conditions of standard reference atmosphere (SRA). For example: +20 c, 65% of relative humidity, 1013 mbar, in accordance with norms NFE. == Types of pneumatic tools ==