Versa goblet jaws 38-75mm TTP017
Goblet jaws for Versachuck. 38mm dia. ring chuck, 75mm o/d
Unique to us is what we term a "Goblet Jaw" designed to give a much firmer hold than can a dovetail jaw, especially for work which projects a long way out of the chuck - like a goblet. One could see this as an update on the venerable - and highly effective - ring chuck principle. To use this jaw, one simply creates a parallel spigot 1.1/2" (38mm) diameter and 3/4" (20 mm) long: at the inner (tailstock) end of the spigot, create a groove about 5 mm wide and 4 mm deep with a parting tool. Now close the jaws around the spigot so that the lip at the front edge of the jaws fits into the groove: the tapered section of the lip will draw the spigot back into the jaws to create a firm hold on the workpiece as the jaws are tightened. The outside of these jaws also features a conventional 75mm (3") dovetail.