My father is a carpenter. He loves building things and now that he's retired he has even more free time. He was looking for such a set of bits. They are made of Teflon-coated tungsten steel. This set comes in three packs; Leaf milling cutters, slot milling cutters and stop milling cutters. Each bit is packed separately in a plastic box. This bit set has many uses and still appears to be of good quality. I think anyone interested in woodworking could use this set, so it's a great stuffing for stockings!