We have customized this set (4 pieces) of box jaws for being used on a Froriep D 1800 heavy duty lathe carrying workpieces more than 100 Tons. These box jaws are 630x380mm with 630mm base length and 380mm bolt-hole-centers distance.
All the parts on these box jaws are made of 42CrMo alloy steel in forgings to gain optimum rigidity.