Bulldozer breaking a bolt loose - GIF

[old kodger]

I was working with a guy repairing a large track hoe. I got in his tool box for something and found a 1" square drive extension about 6" long. The square drive was sheared off of the end. I had to ask who broke that!!! He told me they were trying to remove a large bolt from something.They had used the bucket on the hoe to turn a 4 foot breaker bar. Broke the extension. As I understand it was a "exciting" moment when it broke.

Whack the bolt head on the end first.