Tool designed for the emergency rapid compression of steel gas pipes damaged by car accidents or impacts on ascending pipes on walls and buildings. Operators know well the damages and dangers caused by vehicles that after accidents or wrong maneuvers against walls can tear off and cut the pipes, these damages require immediate emergency intervention to stop the gas leak and the imaginable risks. The high compression capacity gives maximum chocking, sometime till the total arrest of the pressurized leak. The retaining clamp (patented) can hold the tool in compressing positiong allowing the operator to stay at safe distance acting on pedal pump. The equipment is an hydraulic set composed of: pipe compressing tool pedal type, high pressure pump, 5 mt flexible high pressure hydraulic hose with swiveling action on the cylinder, retaning clamp metal box.