The Redding Universal Flash Hole Deburring Tool is just the tool you need to quickly and easily deburr the flash holes of all the most popular cartridge case calibers from .22 through .338. This universal tool gives you control of the cutting depth and features a built-in stop to keep the tool from cutting too far. Cartridge case are often left with burrs after the manufacturing process, and those burrs can cause erratic ignition. Remove those burrs quickly and easily with the Redding Universal Flash Hole Deburring Tool. You won