I have this Dynomite set in both metric and inch. I bought the inch set when I got my LCC, and liked them so much I bought the metric set. I have been using them for a couple of years. The quality is very good, they have hollow aluminum handles (makes them light), replaceable tips (never had to yet), a plastic end on the handle that spins freely of the handle, and a flat on the handle so they don't roll off the workbench. The plastic piece on the handles are color coded for easy identification, blue for metric, orange for inch. They are generally priced a little cheaper than other quality drivers. I highly recommend them.