Engineered for maximum cleaning power, these tightly wound brass core brushes deliver precise bore contact and efficiently scrub away fouling. Built to exacting specs for a perfect fit every time.

5-40 external thread
Precision tolerance criteria for an ideal bore alignment
Does not damage or scratch steel
Long-lasting and capable of being used multiple times

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.