Review on 🔋 Powerbuilt 647501 Heavy Duty 12-Ton Bottle Jack: Ultimate Lifting Solution for Heavy Loads by Tim Knoepfle

A month ago I bought a 6 ton jack of the same brand. It worked fine so I needed another to lift a small tractor to remove both rear tires and fit new wheels. As soon as I raised the axle to the required height, the jack began to lose pressure. I opened the relief valve and tightened the valve 3 times after trying to raise one side but it was still losing pressure. I had to use a jack at a time to take the tires off, luckily I was able to get extra jacks so I didn't have to change tires one at a time. So in my experience you have a 50/50 chance of getting a good one.