Material. Mild steel, 8 mm in diameter, 200 mm long.
Additional tools. No special tools are needed.
Mark the midpoint of the steel with a light centre-punch tap. Heat one end to a bright red heat and position on the anvil flat on the anvil face but close to its far edge. Forge a short bevel (chamfer) on the end and then repeat on the other end (Fig. 48). Heat a little over half of the length and form an eye (Fig 49 and fig 50). Repeat with the other end, keeping both eyes equal in size. Eyes should not be closed up but left slightly open to allow for chain links to be inserted. The eyes then can be closed up by hammer blows applied to the ends of the S-link.