A must have when working on small projects. I was building cabinets for my garage and used 1/4 inch multiply times. It takes some time to get use to it but once you do it works like a charm. Don't really need 3/8 and 5/16 but for the price I paid can't complain.
These are the most common size bits I use for work. I bought them to help me unscrew screws in tight places and I love that they have magnets in the tips to also grab the screws. The locking mechanism to lock the bit straight was a great idea. Love these bits.