Made with a bronze-aluminum alloy that gives them non-sparking and nonmagnetic characteristics, in addition to making them resistant to corrosion. Chisels are mainly used for cutting and slitting metals. The tip type determines the application, depending on how much accuracy or Brute force is required. Made with a bronze-aluminum alloy that gives them non-sparking and nonmagnetic characteristics, in addition to making them resistant to corrosion. Chisels are mainly used for cutting and slitting metals. The tip type determines the application, depending on how much accuracy or Brute force is required.