CS Unitec Paving Breaker Chisel, Aluminum Bronze CS Unitec Non-Sparking Paving Breaker Chisels are a part of CS Unitecs Non-Sparking/Non-Magnetic and corrosion resistant Safety Tool Line. CS Unitec Non-Magnetic Pneumatic Chisels are specifically designed to eliminate the risk of sparks at high-risk sites where explosive atmospheres may be present. CS Unitec Non-Sparking Pneumatic Chisels are available in Aluminum Bronze. CS Unitec Non-Magnetic Pneumatic Chisels are designed to cut and carve wood, stone, and metal. CS Unitecs Non-Sparking Pneumatic Chisels are drop forged for the highest quality in Pneumatic Tools.