Screwpop Screwdriver Compact Bit Holder Keychain | Carabiner Multi-Tool Bottle Opener with New Secure and Stronger Magnet (Includes Removable Double-Sided Bit)

works great, the double sided but is a sturdy ebough being held in, been a week in my key. the nuts also decently hard as I haven't stripped itusing a regular bit instead and the magnet holds great.

The design is what a screw driver on a keychain should be. Basically what this is is a 1/4 inch ratchet bit extension, welded to a rigid metal ring. It is totally simplistic and minimalist. It strongly holds all 1/4 inch bits and gives you comfortable leverage that has a minimum weight and takes a minimum amount of space. It is the smallest driver that is truly useable. For a keychain, all other drivers are less practical. There are smaller ones that do not have enough strength or leverage. Most are larger and are bulky or heavy. Don't even think about using small folding multitool screwdrivers. They will either fold on you, twist, OR if you chew up the point, your multitool is ruined, with no way to replace bits. So design-wise, this is it for a keychain. I do think it would be cool for the company to make a titanium version, but I do not see in the comments that they fail.Additional. I received the tool and have run it through some use. The zinc alloy they use makes the tool very light and pleasant on the keychain. I had made one but it is twice as heavy as this one. It is comfortable to hold and performs well. The bit that comes with the tool fits loosely and feels light in the hand. I imagine it twisting and breaking under pressure. Using standard tool-grade one ended, one inch bits fits well and has more surface contact with the hex socket. The zinc is good for being light, but i am sure there was a trade in strength. So keep your use light to moderate. If you have to strain, it is time to get your big driver out.Overall, I like this tool very much and it will be the screwdriver tool that I carry on my keychain. Used in its appropriate range with tool grade bits, I give this a 5 star rating

Love this. It can be used with fingers if something is not too tight. If it is too tight you insert a bar (or anything stiff and strong) in the ring for more torque and you can still apply downward pressure to the top of the ring. It's the smallest most functional bit driver I've found.

I bought three different options for putting #2 phillips and slotted screwdrivers on my keychain. This one seemed like a good idea, and it's well built, but in practice, I pull it out and then have to fish the tip out of my pocket. Turns out, having two separate keychain screwdrivers was a better option.

Very functional design:Bit driver is long / straight enough to access tricky screws (like in a door knob)Magnet holds bits well in pocket (haven't had one come out after a few weeks use)Ring gives decent grip of the size and allows a fair bit to torque to tighten/loosen screws.Bottle opener ring easier to use then the flat type in many multi toolsBulky:A bit heavy and large (but his also gives it its strength and usability)If used on a keyring, a large one is needed to fit the the thick metal. Better to use a clip of some kind.If flathead bit is left out when in pocket its sharp corners can hurt (not an issue with Philips bit)Aesthetics: Not the coolest looking thing out there (but very functional)Paint / powder coating wears off quickly against other keyring items - better if it was unpainted.