NOVA Spigot Jaws provide a strong contracting grip for spigot turning applications without the support of the tailstock. They come into their own when turning boxes, vases and goblets. Their serrated tooth form makes for a very powerful solid grip. An external dovetail makes these jaws just as effective for turning bowls, expanding into a dovetail recess. The jaws are 1045 high tensile steel, CNC machined from a single solid billet, guaranteeing precise closing, durability and long life, 35mm (1.3/8") Spigot Jaw set for spigots up to 50mm (2") and down to 30mm (1.3/16").Suits both SuperNova2 and Nova G3 chucks.