If you are looking for a seal breaker to crack those stuck fast covers then this is a tool for you! The max pull off force is 500kgs, but small size and light weight, it is very convenient both carring and using.  

Used mainly for light weight covers on driveways and alike. Handy for drainage and telecom covers and those driveway nightmares.

Not  a tool for be abused, not for the covers that need to be hydraulicaly lifted but just the ones that need that little helping hand to budge.