Try this NOVA JS70N 70mm (2.75") Chuck Accessory Jaw Set for your NOVA Chuck. It was designed to expand the range and capacity of your standard NOVA Chuck for specific projects and applications. It universally fits to any NOVA Chuck for maximum flexibility and for money savings as duplicate accessories are not needed for different NOVA Chucks. The 70mm Jaw Set is perfect for bowls and similar projects. These jaws were designed for expanded dovetail and reverse dovetail holds for gripping footed bowls. A special feature of the NOVA wood turning dovetail profile is that it is designed, specifically, for maximum strength and holding the wood turning without crushing the wood fibers. These jaws will hold in both the contraction and the expansion modes. The jaws are precisely machined from a single solid piece of 1045 high tensile steel for precise closing, durability, and long life. The set includes four jaws and instructions. They use the standard fasteners that come with your NOVA Chuck, but spare screws are available (WC# 417753, sold separately).Note: Some accessories such as larger jaws are only suitable for use on the larger NOVA Chucks, please check manual prior to use.