"Steel serrated soft jaws to suit a 12 Inch power chuck. Jaws are manufactured from 080M15 Steel. Good Quality of of material allows for machining with a good finish."
"Domed nuts for workpiece support. These nuts are manufactured from SCM440(JIS) \/ 42CrMo4(DIN) heat treated to HRC 60. Serrated and smooth versions are also available."