@ Comfort & Using the keys @
I bought this little hand tool as a replacement for all the loose keys i had lying around, the tri key storage system certainly makes it tidier and easier to find the keys. The keys are locked in place but can be removed by just lifting the plastic clip up and pulling them out. One of the biggest design flaws i have found with this is that the keys can move up and down but don't actually lock in place when you push them all the way up, so on many occasions i have slipped while pushing too hard on the keys and so they just fall out of the hole, making it very difficult to turn already tight bolts.
The keys are all the same length so getting to the hard to reach areas is no problem but the smaller keys are quite thin so they become hard to see in the dark, of course they cant be made thick then thinner at one end but its still a little awkward. The casing has large rubber grips on all three sides and these provide a great deal of grip when you have sweaty hands, you just slot a key in and begin to turn and the grips will stop your hand from slipping. Even when i have really sweaty hands i never get any problems with slipping or lack of grip when holding the keys.
@ Build Quality @
The casing is made from a very thick plastic and so far i have never had any cracks appear despite massive pressure being put on it for those hard to turn bolts and it has never bent or become misshaped.
The keys themselves are made from a tough metal and even when you leave them out in the rain for days they have never rusted, but they have lost a little shine at one end where they have been used over and over. They will wear down like this but they wont bend or become chipped at one end even if you slam them into holes constantly or just drop them.
The rubber grips haven't worn down at all since i bought it and don't have any chips either.
@ Overall @
This is a high quality tool but because the keys don't clip in place when they are out of the casing, they can bend up and down freely so you will slip and knock the key out the hole. If you are heavy handed or screwing something in quite tight this is a big problem. Apart from this though its a great tool and very handy to have around the house.