The Glow Wire Element is precision manufactured by ED&D in exact accordance with the current version of the Glow wire test Standard IEC 60695-2-10: 2013

At the tip, the diameter of the element is 4.0mm. The thermocouple hole is large enough to accommodate the 1.0mm thermocouple, and is 0.6mm from the front edge of the tip We also anneal them per the requirement.