Hardened steel is very durable, but almost impossible to work with at home. If you're trying to pick up a piece of steel and don't know if it's hardened or not, you're in luck because this video provides a quick method to do so. All you have to do is try to file a notch in the steel with a file. If it doesn't feel, you probably have hardened steel.
Did you just update your iPhone? You'll find new emojis, improved security, podcast transcriptions, Apple Cash virtual numbers, and other useful features. There are even new add-ons hidden in Safari.Find out what's new and changed on your iPhone with the iOS 17.4 update.
