Abstract: A boiler tube peeler tool assembly useful in connection with the removal of boiler tube flared-end segments from retention within power boiler header walls is provided with a tool body subassembly, a clamp subassembly carried by the tool body subassembly and having pairs of clamp expansion jaws that engage the boiler tube flared-end segment interior surface, a peeler blade subassembly that bends and shears retained longitudinal gap metal from retention by the boiler tube flared-end segment, and a conventional pressurized-fluid actuator for reciprocally powering the peeler blade subassembly.