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A power trowel (also known as a "power float", "helicopter" or "trowel machine" or "whirlybird") is a piece of light construction equipment used by construction companies and contractors, to apply a smooth finish to concrete slabs.
Power trowels differ in the way they are controlled:
- Ride-on power trowels are used by an operator sitting on a seat upon the machinery, controlling the power trowel with the necessary buttons.
- Walk-behind power trowels are used by an operator walking behind the machine.
A hand tool for the same task is called a concrete float.