SATA 3-Piece Deburring Set with Standard and Heavy-Duty Blades, Spring-Loaded Release Cap and Ergonomic Green Handle : [THREE-PIECE SET] Set contains one multifunctional handle, a standard deburring blade and a heavy-duty blade, [STEEL BLADES] Blades made with high-speed steel (HSS) and cobalt elements provide the durable strength professionals need, [INDUSTRIAL TRIMMING] Ideal deburring tool for trimming steel, brass, aluminum, PP plastic or other industrial materials, [SPRING-LOADED RELEASE] Spring-loaded release cap makes swapping or replacing blades quick and easy, [COMFORT GRIP] Ergonomic dual material handle provides a safe and secure grip