Wilson Deburring Tool .17 To .45 Cal All cases should be case mouth deburred after trimming and neck turning. Tools are double-ended with standard 45-degree flutes that deburr/chamfer the inside and outside mouth of the case. They will work on cases from .17 to .45 and .50 caliber. Female end is hand filed and each tool is inspected 3 different times through the manufacturing process.