Eezycut Trilobite Knife, Black&Blue/Black/Blue/Blue/Harness

Based on my searching of different dive forums it appears that Trilobites are used by a lot of divers as an essential piece of their kit. I have about 80 dives under my belt over about 6 years and am only now starting to assemble my own gear. All of my dives so far have been with a dive master and a group of recreational divers (typical warm-water vacation diving) and that is mainly the sort of diving I expect to do in the future. As I was researching what other people use in their kit, many people said a cutting device/knife was essential for those "just in case" scenarios so I wanted to get something that would make sense for the kind of diving I do.The Trilobite seemed to fit that bill. It is small, seems like it would be hard to break or accidental cut yourself, and not very expensive. I would imagine the most likely scenario for my style of diving would be to cut fishing line if I accidentally got tangled or was just trying to clean up garbage.Be careful when you order to ensure you get the right mounting style as I ended up with the wrist mount sheath which is not what I thought I wanted. However, after getting it, and thinking about it, I decided to keep it. Honestly it does not work well around the strap of my dive computer (Suunto Zoop). My wrist is too small and there just isn't room for it to fit comfortably. What I did was purchase a NATO strap to put on my other wrist and this setup seems to work really well. It's comfortable and secure and hopefully it will be unobtrusive while diving.Just to be clear, I have not worn this diving yet and, thus, have never had to use it. I may update this review after a few dives but, honestly and hopefully, I'll never have to use it!

This is the second backup line cutter I carry but first of this brand/design. After the first few days of diving it (and rinsing after each dive) only this design started showing rust on the blade. The other design I carry did not (it's a single blade style from dive rite). My biggest concern other than the blade rusting is that the material the harness is made of. It's a weird lightweight foam that's very similar to car headliner upholstery foam material. The "velcro" pieces don't grab onto it well at all so it feels flimsy and very easy to get pulled off your BC if you're not paying attention to it. You could very easily go to grab this one day and it not be there. It's a very weak connection design. Make sure this isn't your only cutter.

As a salvage diver I have roughly 80-100 dives with this product. It has gotten me out of some sticky situations. I have dove in plenty of different conditions from crystal clear to canals at midnight and I would not recommission diving without a knife like this. It is starting to rust a little bit I don’t take the best care of it. I do a practice cut before every dive and the day it doesn’t make the cut I will use the second one I bought and come back here for another.

These cutting tools were a great idea. I dive with a backplate\wing type BCD. I wear this on the waist strap of my BCD on the left side as far back as I can slide it. It is in easy reach I need to grab it to cut myself out of entanglements. It design is such that it would be impossible for the diver to cut themselves and hard to cut anything that does not need cutting. I purchased this with the idea that it would be my secondary cutting tool and is placed so that with either free hand I could reach it if I were entangled and could not reach my primary cutting tool (A large 1980's vintage Rambo dive knife). I have not had to use the Trilobite for dinentanglement yet but from testing it works well and I really don't even realize it is there most of the time.

Better than a knife, not as good as a light saber.

Knife works great for cutting rope, line, or webbing and is well designed. However, I've almost lost the knife twice due to the belt mount coming undone. The belt mount is just a neoprene loop with velcro. If you aren't careful putting on or off your BCD, you can accidentally rub the velcro, causing it to loosen or become undone and the knife to fall out.

Watch the EEZYCUT video on their website about it's performance -- these knives can cut through even thick/robust rope. In terms of their quality: the appear to be very well constructed and sturdy. Have had no issues with rust or corrosion. They do come with spare blades as well. As a cutting tool this works well if the thing that needs to be cut can slide between the blade and the guard. This leads to the biggest downside of this cutting tool: it can only really be used for things that can fit in-between the blade and the guard. It would be nice if one side didn't have a guard so that it could be used to cut anything you need to. As it is, it can only serve as a backup cutting tool and a knife still has to be carried in case what needs to be cut doesn't fit in the trilobite knife.

The orange is an attractive color that's easy to spot and the blade does well to cut through most basic entanglements risks such as fishing line. I love that it comes with replacement blades in the package - since these do have the tendency to rust over time from frequent diving. I fit the harness pouch option onto the waist band of my BCD, so it's within reach and easily accessible.