Product Description 66 blade type; high carbon steel Material; rust-resistant finish; punch down tool used on From the Manufacturer Greenlee has been going strong for more than 145 years and continues to be the preferred brand of tools and equipment for the electrical contractor. Their focus, as always, has been to deliver customer-focused innovation in the form of high-quality tools that contractors rely on daily. The Greenlee 46022 66 style punchdown blade has the cut side labeled to eliminate costly punching errors. It is made of high-carbon tool steel and is heat-treated and precision ground for long life. The reversible blades are made for seating and cut or seating only for jumper wires. It also has a rust-resistant finish.