The Lyman Flash Hole Informing Tool is perfect for reloaders looking toincrease ignition consistency and reduce variation from case to case. When brass is manufactured there are burrs that are sometimes created when the flash hole is tapped out. This tool quickly removes that burr creating more consistent ignition. This process only needs to be done once for the complete life of a piece of brass. This steel tool includes a cutter, shaft, shoulder stop and ergonomic plastic handle. It also features an adjustable stop collar which allows use with any length case. The Flash Hole Uniformer is not a standard deburring tool, as it deburrs flash holes only and not other parts of the case.