AlBr Machinists' Hammer Home › CS Unitec Aluminum Bronze (AlBr) Alloy Non-Sparking Tools › AlBr Machinists' Hammer CS Unitec Non Sparking Double Face Machinists' Hammer 1.1 lbs Aluminum Bronze Ex103-0500ARegular Price: $56.19On Sale For: $51.08 Aluminum bronze tools are high quality, non sparking, non magnetic, corrosion resistant tools. THey help fulfill demand in ATEX directive 94/9/EC for work in zones 1, 2, 21 and 22. This means that they are safe to use in an atmosphere where a mixture of air and flammable substances in the form of gas, vapor air mist or dust is likely to occur in normal operation occasionally. They have a hardness of 23-35 HRC, making them not quite as durable as CuBe tools. They also have low magnetism due to minimal ferrous components, making them appropriate for non-critical non-magnetic applications.