APPARATUS FOR RADIAL COMPRESSION FORMING OF METAL ARTICLES IS DESCRIBED IN WHICH A PLURALITY OF RADIALLY CONTRACTABLE DIE JAW SEGMENTS IN A SHRINK-FORMING DISPOSED IN A HORIZONTAL PLANE VERTICALLY ABOVE A WORKPIECE FEEDING STATION WITH AUXILIARY TOOLING ALSO BEING CONTAINED OPTIONALLY WITHIN THE HEAD. THE SHRINK-FORMING HEAD AND TOOLING ARE CARRIED ON TRUNNIONS FOR ROTATION ABOUT A HORIZONTAL AXIS TO ALLOW ACCESS AND MAINTENANCE TO THE DIES AND TOOLING.