Pirates carried many different weapons on a boarding action. Boarding Axes have lots of weight at the end, which can't be stopped by any cutlass. Tomahawks are a much better secondary weapon compared with a dagger as it can block a cutlass much better and throws much easier. Belay pins arrrr alway a handy improvised weapon when you lose all yars in battle. We even have the most famous of all pirate weapons - the hook!