8 Inch Jaw Boring Ring Three Jaw Chuck Steel Adjustable Soft Jaw Boring Ring Claw Device Hydraulic Three-Jaw Chuck Shaping Ring for CNC Lathe Chuck Soft Top Jaws Bore Repair$$Tools & Hardware Other

Improved Accuracy: No flare shape or centrifugal vibration, better control of high precision (.005) hydraulic raw jaw forming rings, both outer and inner jaws available. The hydraulic raw jaws can be adjusted to the required dimensions, making operation simple and efficient to meet your needs, saving time and effort. 3 Pins: Its 3 independently adjustable pins insert into the countersunk holes of the soft jaws, giving each pin an even force and eliminating jaw lift, and its smooth surface allows for a better fit on the lathe and smoother work. Powerful Gripping Power: By using the forming ring, it can effectively improve the accuracy and gripping power of the old style chucks, which is ideal for soft jaw machining on CNC lathes, CNC power chucks and manual chucks, so that you can get a better concentricity and truer bore of the soft jaws. Durable: It is made of ultra-high-strength 42CrMo steel for high strength and toughness, combined with high-temperature hardening and tempering for high hardness (45-50 degrees) for longer life and reduced maintenance. User-Friendly Design: It does not require discs or shims to hold the jaws in place, allows through-hole machining of the jaws, and each part of the jaws is sized to precisely match the lathe so it can be mounted smoothly.