Dive knife, is it really necessary?

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Avic7

Contributor
Messages
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Location
Canada,B.C., Vancouver
I keep losing my diving knife and I'm getting tired of replacing it. I haven't really used it all in my dives. I'm just wondering if we really need it at all. I live and dive around Vancouver, BC, Canada.
 
do you have kelp, fishing line or any other stuff you can entangle in?
 
I have carried a knife for 27 years diving, and only ever used it to cut oranges in the surface interval. But on the other hand, I don't do serious wreck diving, or other potential entanglement areas.

Curiously, my instructor once had to use his knife to cut himself free when the strap attached to the zipper on the back of his wetsuit got caught in his DPV propellor.
 
There were a couple times this weekend when I almost pulled mine out to cut myself free of the weeds.

We did have to use one to pry an o-ring out of a rented tank that was leaking slowly. Without it, we would have had to call the dive. One could argue that we should have had a picker tool, and we may in the future, but the dive knife did come in handy.
 
IMHO no. Get shears. They are cheaper to replace and again IMHO do a much better job than a knife underwater for any job I have ever needed done. A knife is a great for cutting fruit though!:D
 
I'd rather have one with me and not use it, then need one and not have it......
 
As said before, with any chance of entanglement, wear one, or 2, and shears. With anything not physically attached to you though, buy something cheap, because as you've learned, you WILL lose it.
 
never buy a 100 dollar knife. you are just gonna loose it anyways. id say its a definate must have. even diving in quarrys and lakes. i've been entangled in fishing line quite a few times....so the knife does come in handy. you can also carry scissors or shears, anything that will cut line.
 
I keep losing my diving knife and I'm getting tired of replacing it. I haven't really used it all in my dives. I'm just wondering if we really need it at all. I live and dive around Vancouver, BC, Canada.

If you've never used it, how on earth do you keep losing it?

At least one cutting instrument is a key piece of gear, I prefer at least two, maybe three:

- Standard dive knife on waist strap
- Z-knife under wrist computer strap
- Trauma shears in DS pocket
 
How are you gonna cut the air hose of the bad guy if you don't have a BF Knife?
 
https://www.shearwater.com/products/peregrine/

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