Definitely heavy duty. This is a very well bit jack. The only thing cheap is the price. No need to waste money on the ones that cost a lot more, because this is not a knock off . If by chance it really is then they did one heck of a job. Trust me, I have tons of tools and know well built and junk tools. I liked this so much I ordered a second one as soon as this one arrived

I use it to pry up rock slabs that have fossil footprints underneath. It’s built well, solid, the mechanism works flawlessly. Even the lever to switch from up to down flips easily under load. Hypothetically if you were to use it in an inappropriate situation such as soft uneven rocky ground the odds of it holding are very good. It weighs a ton. If you are looking for a lightweight jack go see a doctor before you drop something on your melon. Note: This is a manual jack. You use your arm muscles to make it go up. It does NOT automatically lift anything by means of a gas engine or electric motor, it is not WiFi enabled and there is no app. It comes with instructions if you need assistance operating what is arguably one of the simplest mechanical devices since the lever.

Bought it for truck work but ended up using it around the garage too. Nice to have one jack that covers different jobs.

Well made and good quality..

Nice item at the cheapest price around. Used it for a project and then slapped it on the Jeep.

Great. I use it for when the RC mowers get stuck on a stump or the tracks come off the rollers. Easy to carry and use and a great price.

After a month of use on different vehicles and equipment, I am happy with it. Rugged, practical, and easy enough to handle alone.

Keeps earning its spot in the barn. Solid purchase.

The 6600 lb capacity was the reason I chose this one. So far it has performed exactly how I hoped.

Works on my SUV, utility trailer, and small tractor. Nice having one jack cover all of that.