Head′ing—tool.
(Forging.) A tool used in swaging heads on stems of bolts. The rod is run through the hole of the required form and size, and the projecting portion is upset or hammered down, forming a knob. This is brought to shape by a swage. A swage with an angle of 60° is used for making hexagonal bolt-heads. (See Fig. 2467.) Heading-tools for nail, rivet, and brad forgers are made like nippers to open and release the nail, etc., after the head is swaged down.