Sealey make good quality products however the bits are too small in size and they don't fit nice into the supplied socket, they fit lose and sometimes fell off from the socket. They have made a hole with hex key to tight the bits like mechanics have got that much time to fiddle around with a tiny hex key supplied in the kit. Sealey should have made a spring loaded ball design to retain the bits into the sockets. And it would have been more useful if bits were slightly longer so that they can do the job what mechanics deal with every day. It's not cheap either.