N3JJ Replacement Jaws Charnwood N3JJ Jumbo Jaws For Nexus3 Chuck, Supernova,G3 Nova Woodturning Chuck Jumbo Jaws Jumbo Jaws for Nexus3 Chuck. Jumbo Jaws for Nexus3 Chuck. Our N Type jaws are designed for use with our Nexus3 chuck as well as some other brands. A set of 4 optional jaws for Nexus3 geared scroll chuck. The jumbo jaws have a dovetail on the inside and outside of the leading edge. When nothing else is big enough, reach for the jumbo jaws! Projects 12mm from base plate. Expands from 123mm to 150mm Contracts from 132mm to 105mm Projects 12mm from base plate. Packard Woodworks: The Woodturner's Source: Nova Titan III Chuck Contracts from 132mm to 105mm. Expands from 123mm to 150mm. Charnwood N3JJ Jumbo Jaws for Nexus3 Chuck, Supernova,G3 Nova Patriot · Expands from 123mm to 150mm · Contracts from 132mm to 105mm A set of 4 optional jaws for Nexus3 geared scroll chuck. When nothing else is big enough, reach for the jumbo jaws!, ., Projects 12mm from base plate. The jumbo jaws have a dovetail on the inside and outside of the leading edge.