Lee Precision Ultimate Lock Rings Features The Lee Ultimate Lock Ring uses a spline drive design that lets reloaders install and remove dies with a dedicated lock ring wrench rather than fighting a traditional set screw. This torque style splined exterior provides a no-slip grip even with gloved or wet hands reducing frustration during long reloading sessions. An anti-rotation O-ring is included with every ring keeping the lock ring from loosening or shifting once a die is set which preserves consistent seating and sizing depth over time. Lee states the design never loosens during use a meaningful claim for reloaders who rely on repeatable die settings batch after batch. Each pack includes four rings finished in red white blue and gold anodized aluminum letting reloaders visually color code their dies by cartridge or step in the loading process. The anodized finish resists wear and corrosion keeping the color coding legible even after years on a reloading bench. These rings fit any standard 7/8x14 threaded die and are compatible with Lee reloading dies and presses as well as other brands using the same thread pattern. This four pack of Lee Ultimate Lock Rings gives reloaders a simple affordable way to speed up die changes on the bench. Lee Precision Ultimate Lock Rings Specifications Manufacturer: Lee Precision Model: Ultimate Lock Rings Color: Multi Material: Aluminum Finish: Anodized Package Quantity: 4 Country of Origin: USA Available At: GrabAGun