The Forster Deburring Tool is a double-ended multi-function tool that can be used by hand, by lathe or attached to the end of the optional Deburring Tool Base (item 492-986). The tool allows the reloader to quickly chamfer and remove burrs from the inside and outside of the case mouth of all calibers ranging from 17 caliber to 45 caliber. Notes: Can be used by hand, lathe or attached to the Forster Deburring Tool Base (sold separately 492-986)