CS Unitec Cross Peen Engineers’/ Blacksmiths’ Hammer, Aluminum Bronze CS Unitec Cross Peen Engineers’/Blacksmiths’ Hammers are a part of CS Unitecs Non-Sparking / Non-Magnetic Safety Tool Line. CS Unitec Cross Peen Engineers’/Blacksmiths’ Hammers feature drop forging that ensures a long tool life and are now provided with Nupla handles which are twice as strong as fiberglass and 10 times stronger than wood. CS Unitec Cross Peen Engineers’/Blacksmiths’ Hammers are available in Aluminum Bronze. CS Unitec Cross Peen Engineers’/Blacksmiths’ Hammers are designed to strike concrete, stone, metal, and wood. CS Unitec Cross Peen Engineers’/Blacksmiths’ Hammers are Non-Sparking and Non-Magnetic which makes them ideal for a wide variety of jobs and flammable atmospheres.