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Penetrates and blues steel instantly. Produces a blue-black finish that rivals the original. Safe and easy to use. No heating required. Great for gunsmithing. DUE TO FAA REGULATIONS THIS ITEM CAN NOT SHIP 3 DAY, 2ND DAY, NEXT DAY AIR WITH UPS OR FedEx EXPRESS, CAN NOT SHIP WITH UNITED STATES POSTAL SERVICE OR INTERNATIONALLY CAN NOT SHIP TO CALIFORNIA
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🇺🇸 Ship from USA · On Agora since 2026
$9.95