Not really. It's mystery metal. I have my suspicions it's the Chinese equivalent to 303 stainless at beast or possibly worse. It's very gummy to machine. I once tried to machine some little machine screws out of one of those wrenches for a model steam engine I was building. I could barely make usable threads from it despite trying HSS tooling and carbide tooling. It was so gummy that the threads would tear as I tried cutting them. Even a brand new $30 #4-40 Greenlee die struggled forming useable but still nor clean threads.