My 2 old sinkers were 20 or 30 years old. This set had pretty good reviews so I decided to buy the set. They come in a decent aluminum case. It's not bad here, but sinkers are next to junk. Uses a pair on pine and poplar. TERRIBLE RESULTS! You just CUT the horrible fake bevel. Had to clean with one of my old ones. The end result went deeper than I wanted. Later I had a few holes in the stainless steel that I just wanted to remove. Don't actually countersink, just trim the edge. All they did was grind the metal down without cutting. Update February 22, 2019: Just used one on an aluminum plate and is MUCH better. Not smooth, but acceptable