Abstract: An electrical plasma jet torch has front and back electrodes mounted in a torch body and means for maintaining a high current electric arc between the electrodes. The front electrode is the anode and is formed with a passage that provides a nozzle through which high velocity, high temperature plasma is ejected. The anode includes an improved arrangement of concentric rows of coolant passages extending to the front of the anode. A single annulus formed in the anode provides communication with all passages of the outer row. Passages of both rows are arranged in mutually spaced groups to provide space for a number of powder bores which extend substantially radially through the anode. The powder bores are enlarged to receive a sleeve which is readily replaced when eroded by highly abrasive powders. An annular grooved boss of the front of the anode is received in a groove in a cover plate and sealed thereto by means of O-rings to provide a coolant flow reversing annulus at the front end of the anode.