The Forster Deburring Tool Inside-Outside is a high-quality double-ended multifunction tool designed for .17 to .45 caliber ammunition reloading applications.Forster Inside-Outside Deburring ToolCompatible with calibers ranging from .17 to .45Double-ended design for chamfering and burr removalWorks on both inside and outside of case mouthsCan be used by hand or with lathe attachment to Deburring Tool BaseConstructed from quality materials for years of reliable servicePerfect for reloading enthusiasts who demand precision and efficiency this inexpensive yet durable tool quickly eliminates burrs and provides professional chamfering results for consistent ammunition preparation.