Grew up around HI-LIFT jacks on the farm. Spent many hours using them to lift farm equipment, fixing fences, jacking up pickups to either get them unstuck or changing tires. That being said, those are one of the most dangerous tools around. I know at least 3 people who have had teeth knocked out, one broken arm and one broken leg from those jacks. Not saying it is all the jacks fault, but you have to have hands on those things all the time. you just have to have a lot of respect for them. My dad had one come back and bite him one time and he said that when he woke up the sun was a lot further west than he last remembered.
