Red Devil Stiff Knife Professional Series 4"The EZ GRIP Series of putty knives, wall scrapers, and taping knives are specially designed with ergonomically engineered handles to decrease hand fatigue. They are crafted with extra sturdy, rust resistant, high carbon steel blades that extend through handles for maximum strength and durability. The durable brass plated, solid steel nail setting head can be used for setting nails and other hammering jobs.