Nova 45mm Spigot Jaw Set - fits G3, Midi, Supernova, etc. Ideal for turning goblets, tops, etc. EXPANDING GRIP 51.8mm (2.04”) – 71.9mm (2.83”) CONTRACTING GRIP Square: 50.8mm (2”) – 31mm (1.22”) Spigot: 61mm (2.4“) – 40.9mm (1.61”) Actual sizes may vary depending on which NOVA chuck is being used. These 45mm Spigot Jaws provide superior gripping power for projects when a long overhang is needed or hollowing into end grain. Only NOVA chucks give you the same jaw fixing system and same insert/adapter system across all standard chuck models giving you optimal flexibility. All accessory jaws in the standard chuck range will fit all the standard NOVA chucks