The Hydraulic Spear is used to fish either downhole equipment with a damaged internal fishing neck or tubular sections lost within the wellbore. To engage the fish, simply set down weight, allowing the slip to collapse into the bore. When an overpull is applied, the slips will take hold of the fish. To release from the fish, simply set down weight and flow through the tool. This creates the differential pressure required to de-support the slip and allow it to collapse and release. This tool can be supplied with a complete range of hardened slips for varying internal diameters. A selection of nozzles to vary the activation flow rate is also available.