Try this NOVA JS20N 20mm Mini Chuck Accessory Jaw Set for your NOVA chuck. It is designed to expand the range and capacity of your standard NOVA Chuck for specific projects and applications. Specificially, these mini jaws are great for projects that require jaws smaller than the 25mm jaw set. It universally fits any NOVA Chuck for maximum flexibility and for money savings as duplicate accessories are not needed for different NOVA Chucks. This set is for small bowls and unsupported small spigot turning. Ideal for midi or mini lathe work. It features a special NOVA wood turning dovetail profile designed specifically for maximum strength and holding in wood turning without crushing the wood fibers. These jaws will hold in both modes: contraction and expansion.This set is 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.