Thinking about dive knives? In this Quick Scuba Tip I walk through the exact thought process I had after cleaning out my scuba drawer and finding my two old knives. It kicked off the big question: do you even need a dive knife—and if I was starting over and buying gear again, would I buy one? I break down the different styles (big vs small, blunt vs sharp tip, serrated edges, titanium vs stainless) and what they’re actually good for in the real world. I’ll be honest: most divers don’t need a giant “Jaws-era” blade, and I go over the real downsides—stabbing yourself, puncturing a suit/glove/BCD, accidentally whacking (or stabbing) a buddy when trying to bang a tank, plus the bulk and drag. Yes, knives can cut line, but waving a big blade around in dry gloves is sketchy. My practical recommendation is simple: carry a line cutter (or even shears) because it’s small, streamlined, and designed so you’re way less likely to cut yourself. It still handles the job—cutting fishing line, thin rope, or reel line—and it’ll even help you slice up a snack on the boat when the occasion arises.