A man stands in a garage and hits the floor with sledge hammers many times.
Man using a double sledgehammer technique to strike a concrete floor outdoors.
a man in a room holding a hammers hitting them on the ground
A man is swinging a sledgehammer in each hand and hitting the floor.
A man swinging and hitting the floor with two mauls.
A man swings and hits two sledgehammers against the ground
A guy has a sledgehammer in each hand hitting the ground with them.
A man slams to sledgehammers on the ground over and over
A man hits the floor repeatedly with hammers with long handles held in each hand.
A man is simultaneously slamming two hammers down on the ground outside.