A guy repeatedly hits a hammer on something until it makes a noise.
a man hitting a device with a sledge hammer inside with others
A man hits a contraption with a sledge hammer while others watch.
A man is using a sledge hammer to drive a piece of equipment into place.
A man is swinging a large mallet and hitting a mounted device over and over again
A man swings a sledgehammer at an apparatus in a crossfit studio.
A man is hitting a metal structure repeatedly with a mallet.
A man hits hard on a metallic surface using a huge object while other people mill around
A man is hitting very hard at a steel object with a big hammer.
A man is using a sledge hammer to fix a piece of equipment.