Using a Mower Jack Reviewing and Breaking it 

Good video pal. Didnt think the the handle would come off so easily, but at least you got it working and won't do it again.

Good video - useful tool. I don't think it was your fault with the handle. I have a Vounot one of these and it doesn't do that if you go the wrong way. I have only used it 2-3 times though so time will tell whether it lasts. Good idea on the block of wood too!