They work great. Out 1.5 hrs today and pulled a 5 gram Mans 14kt ruby ring with a nice fancy initial W in the middle. I usually never talk about any of my finds but this Ring Tab puller will make short work of the alum. and will help you work faster hunting for the jewelry and make less of a mess. I know it is going to work great at the beaches I hunt. I will have to add a bike grip with a flange on it so hand don't slip down on the blade. Anyway it is a great little device to work the alum. trash faster. I hunt so much I am always looking for ways to save time. Use the small high speed metal cutter disks. Jabbo really came up with something nice. Later bud, Jerry aka Tinfoil