I bought one,two actually,and the locking mechanism on the side with the quarter inch driver sticks something terrible.I've had to file down some of it and oil and work it open and close countless times to free it up.its still not as free as the other side but it is operating a little better.I've seen the same issue with a youtube reviewer on his one.first day I couldn't even flick out the assisted blades it was so tight.it looks like one locking tab is cast slightly bigger than the other and has no room to operate freely.like I said though it does seem to be improving with use but I really didn't expect to have to modify my brand new multi.besides that though it is an awesome tool.big and chunky.should take whatever you throw at it.the stonewash finish is beautiful.I hope they're not all like that.I haven't opened the other one for fear.