Craftsman 96PC Ultimate Bit Socket Set has every size you could need for all your projects needing socket bits. They are high quality units made by Craftsman,so you know they are made by a high quality brand. They also have a lifetime guarantee, which I doubt you will ever need to use,but if you do, each piece is guaranteed to be replaced free of charge, without having to return the whole kit. I love the strength of each piece, knowing it will not break when putting pressure on it. I like the reliability of Craftsman, knowing it is high quality every time, no matter what tool I buy. I would recommend this product to anyone, and suggest they only have Craftsman products in their tool box.