Yeah Halfords have done them for years, They are also classified as go through sockets. I mainly use them for track rod ends, shock absorber top mounts & threaded rods where deep sockets won't cut it.I thought they were a new invention1 Have Halfords always sold them or was yours a different make. Do you find them better than the norm then?
One of those tools that when you need them you need them!OK thanks boys. good thinking Ashley ref track rod ends etc. I knew there was a reason I needed them!!