The RCBS Deburring Tool is a precision reloading tool designed to eliminate burrs from the inside of a brass casing's flash hole, ensuring more reliable and consistent performance. Burrs left behind during manufacturing can cause erratic ignition and affect overall reliability, but this tool effectively addresses that issue. It features a self-centering pilot collar with an adjustable stop, allowing for quick and accurate alignment with the flash hole, ensuring precise deburring without removing excessive brass or altering the proper diameter of the flash hole. The included Case Pilot Stop holds the brass casing securely in place during the deburring process, preventing spinning or wobbling and reducing the risk of damage. With its reliable design, the RCBS Deburring Tool provides consistency and accuracy, making it a must-have for serious reloaders.