This Greenlee 3" Conduit Knockout Punch is a reliable and efficient tool for your business needs. With its sturdy construction and durable materials, it is designed to provide you with a long-lasting solution for your punching and die needs. Its model number is 500-4180 and it is made by the trusted brand, Greenlee. This punch is perfect for professionals in the business and industrial industry, specifically those in need of a reliable knockout punch. Its size and design allow for easy use and transportation, making it a great addition to any toolkit. This punch is a must-have for anyone looking for a high-quality and efficient tool for their business needs.