Flaring tool

In a flaring tool including a yoke having an anvil surface for supporting a tube holding bar and a threaded bore for receiving a threaded actuator, the thread of the bore and actuator having a given lead, the actuator having an outer end having a torque handle mounted thereon and an inner end disposed toward the yoke anvil surface, and a tube flaring head mounted upon the actuator inner end adapted to engage and flare the end of a tube held within the tube holding bar, the improvement comprising, first connection means defined upon the actuator inner end comprising a coaxial bore within the actuator intersecting the actuator inner end and first threads defined within said bore, the tube flaring head comprising an adapter, and second connection means defined upon said adapter adapted to selectively cooperate with said first connection means whereby said adapter is removably mounted upon the actuator inner end, said second connection means comprising a stem defined upon said adapter and second threads defined upon said stem, said second threads mating with said first threads, said first and second threads having a lead different from the given lead of the threads of the threaded actuator and yoke bore to prevent torque forces imposed on said adapter during rotation of the threaded actuator from loosening said adapter on the actuator during retraction.