The Seal Breakers are designed to break the seal on tight fitting manhole covers that have not been lifted for sometime or have had heavy traffic use.
They come in two sizes, the DQ42 Mini-Seal Breaker is 250mm long, the this Standard DQ8 Seal Breaker is 700mm long.
Easy to use. Set the lifter as pictured and lock key into the lid cover. Wind the Set Screw down to apply force to break the seal. (Spanner not included)
See DQ42 part number for the Mini-Seal Breaker