This product is the punchdown blade used with the EPD-91466 Manual Punchdown Tool. The punchdown tool is designed for use on 66-style cross connect blocks. This blade comes included with our EPD-91466 Manual Punchdown Tool and is also compatible with other industry-standard twist and lock style punchdown tools. The blade is backed by our lifetime warranty and is made of hardened alloy steel and nickel-plating for high durability and long life.