MAD key will help you open shackles, deck fill lids regardless of type, a truly universal tool that is comfortable to use…

Mantus Marine Deck Key
Universal Deck Fill Lid Key
Mantus Universal Deck Key is a multifunctional tool that opens all types and sizes of deck fill lids, and shackles. The tool is truly universal, intuitive, easy to use and comfortably fits in your pocket.Mantus Universal Key is a stainless steel (316L) precision investment casting so it will not corrode or wear with time. Its the one tool every boat captain should own.
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