Burrs left on the inside of the flash hole during manufacturing can cause erratic ignition.This handy tool automatically locates the hole and quickly removes the burr.A self-centering pilot collar with an adjustable stop allows quick alignment and prevents the removal of too much brass.It includes a case pilot stop.Type: Deburring ToolCaliber: 6mmSize: 6mm, 243 Caliber CasesQuantity: 1Function: DeburringCompatible With: 6mmMaterial: Plastic Handle w/Steel CutterIncludes: Case Pilot StopFinish: Green w/Black Accents