This versatile 3-1/4 inch diameter pulley is crafted with precision to ensure optimal performance and reliability. Designed with a 1/2 inch bore, it fits seamlessly into various mechanical systems, offering flexibility and efficiency. Constructed from durable zinc, this pulley is built to withstand wear and tear, making it a dependable choice for both industrial and DIY projects. Its variable speed capability allows for smooth operation across different applications, enhancing the overall functionality of your machinery.