Designed for precision and efficiency, these aluminum depressed center wheels from Pearl Abrasive are specifically crafted for grinding soft non-ferrous metals such as copper, brass, and bronze. Each wheel features a durable aluminum oxide construction with a T-27 shape, ensuring optimal performance at a maximum RPM of 13,300. With a thickness of 1/4 inch and a diameter of 4-1/2 inches, these wheels are packaged conveniently in boxes of 25, making them a practical choice for both professional and DIY applications. Ideal for achieving smooth finishes, they are an essential addition to any toolkit focused on metalworking tasks.