Automatic Utility Knife, Safety Auto Box Cutter Retractable, EDC Push Button Exacto Scalpel Knife, 10PCS #23 Razor Blades Pocket Knives with Clip

The mechanism is very smooth and fun to play with, extending and retracting the blade doubles as a fidget toy, the blade is sharp and exchangeable, it's light but feels well made and secure when closed, over all its my favorite box opening knife (wouldn't try heavy duty cutting as the blade is thin). Very reasonable cost, especially when on sale.

This knife feels pretty sturdy in your hands. It's small and compact easy to carry and light. Snaps in and out very good so far. I've had mine a week or so and am constantly playing with it. Replaceable blades are very sharp and snap in nicely. For under $20 this is a great back up knife to carry along with my EDC. I've been using it to cut open boxes at a warehouse job with no issues. Pocket clip is nice.

Got this not sure if it'd have any practical use. After a week, must've used it at least a dozen times to do crafts and home repair and renovation tasks that it did much better than a regular box cutter type knife or hobby knife. Blade style is great for getting precise accurate cuts in awkward or tight spaces. Or on small objects. Thing is rock solid. Blade has no wiggle at all when deployed. Light. Compact. I don't understand the reviews complaining about blade being difficult to install. It was extremely easy to do (I used pliers to hold it during installation as suggested by some for safety). The button is stiff - in a good way. Would be extremely difficult to accidentally pop the blade out. Safer than a box cutter. Was wondering if it'd be unsafe somehow, but the opposite is true. Cuts are more controllable. During use it's so easy to retract and deploy blade (and somehow satisfying) that I always close it when finished with a cut, unlike a box cutter or hobby knife that I may sometimes keep with blade out if I'm expecting to do more cuts a few minutes later - so those are a little more unsafe from that viewpoint. Will be getting another for sure. Been using it a few times a day for about 3 weeks now. Still good. Hope it stays that way for many years. Only improvement I'd like to see is the body having a few more areas with grooves or ridges for grip. Grip is good now, just could be a bit enhanced. Maybe more colors would be good in future.

I have several OTF knives in my collection, mostly because they are fun to play with and have a cool factor that is unique. Most of them are 10 times more expensive than this little guy. But this knife is as much fun as any of them. The size is perfect to stick in your pocket, no need to clip it really but it has a great clip. The OTF action on this knife is amazingly quick and authoritative. Click CLACK. As a tool, well it has advantages (scalpel sharp, replaceable blades) and limitations (too small and not sturdy enough for most serious cutting jobs). But it is extremely well machined, and as a fun OTF fidget toy, this one wins by far. I can’t believe it’s only $20.

Very well made, with tight tolerances. Nice anodized finish. Works well. Switch easy to operate, and spring has authority. Compact and easy to carry (as an EDC knife). Highly recommended!