The good kind, not the tatted up prison gang kind. I have a bunch of industrial blades, serrated, that were apparently made for some sort of automated box or packaging equipment machine to cut cardboard/paper/plastic. These are very high quality steel, some sort of tool steel. Wicked sharp. I'm afraid to take the plastic guards off of them for fear of slipping putting it back on and taking off a finger. They need a home. If there are any knife forgers out there with interest please send me a PM.