Assertion: impact wrench | /r/HasProperty | pneumatic
Facets:
value: historically
type: TEMPORAL
value: predominantly
type: DEGREE
Source sentences:
text: Historically, impact wrenches were predominantly pneumatic, or air powered, which left them squarely in the domain of professional mechanics.
text: Air impact wrenches, also known as pneumatic wrenches, are generally considered the most powerful and most popular with professional mechanics, but they require an air compressor, which means they aren’t very convenient for home use.