TACRAY Titanium Utility Mini Knife, Small Box Cutter with Retractable and Replaceable Blade for Multiple Cutting Tasks and EDC, comes with 2pcs of extra blades for replacement (Blue)

Even though I carry a pocket knife I find my self using this a lot more often. I keep this on my key chain it's perfect for opening boxes and the blade is easy to change. I highly recommend you pick up a pack of #11 hobby blades to go with it.

I was impressed with this knife when it arrived for the price. I even put a tritium vial in it. But it lasted about 6 months on one of my key chains before one of the screw holes stripped and the knife half fell apart. Lucky I noticed fairly quickly because the blade was then exposed and could've cut me or a couch/car seat. If it wasn't a safety risk I'd give it more stars just because it is a cool little knife. I just would keep it on a desk or something, not a keychain clipped to your belt.

I like the small size and sharp blades, but it doesn’t stay screwed in. It fell apart while on my keys and in my pocket. Even when I screwed the blade in tight it eventually became loose. I also bought replacement blades which I can’t use anymore because I don’t have any more spare parts to replace the screws. This blade would’ve been great if it didn’t have so many small parts holding the blade in place.

Very small but all you need for a blade, locks in place retracts easily. It’s all you need.

This thing came unscrewed and fell apart in my pocket 3 times the first day I tried to carry it! Needless to say I don't have the blades or parts to even try and give it a second chance! Great idea and concept though.