Dillon jaw forming rings lessen the amount of jaw stock removal required during parts set-up, thus maximizing jaw life for cutting and forming operations – and they are now available in diameters up to 21-inches. They provide a more uniform grip on the workpiece and mount in direct contact with the top jaw to preload the chucking system. Jaws can be more precisely machined to provide a firmer grip on the workpiece. Self-centering jaw forming rings attach to the front of jaws without tools, so installation is fast and simple, and set-up times are slashed.  Use of this device will provide a jaw surface true to the machine centerline, reduce set-up times, and increase up-times for running machined parts.  They provide uniform pressure on jaws for a more consistent bore on large diameter chucks.  They compensate for “jaw lift” even in worn chucks, which yields better part concentricity. Ideal wherever soft jaws, round jaws, and full-grip jaws are used. 

Chuck-diameter-specific versions, and adjustable boring rings are available from 6-21-inches in diameter.  Both styles feature no-tools attachment.    Dillon jaw forming rings are a high-quality product which will ensure years of quick, stress-free set-ups when paired with Dillon jaws.