handle and nickel-plated handle and lock nut ensure durability and wear resistance, making it functional. That's everything a Starrett tool should be. Everything has a great fit and finish and works very well. It works with strong holding power with drill bits as well as for holding parts. What I like most is how long pieces can go through the handle. It's not a feature you're likely to use every day, but it's great when you need it. Some comments indicate a rough open/close and mistakenly believe this is a thread. You actually feel the collet in your nose. Put a drop of oil on it. These things have been in boxes in hot warehouses for years. What little oil they had from the factory has long since evaporated.