This 3-pack of Warrior 4-1/2" 40 grit cut off wheels is perfect for your metalworking needs. The arbor hole size is 1/2 inch, and the wheel diameter is 4-1/2 inches, making them ideal for a variety of applications. These abrasive wheels are designed for cut-off and chop operations, and their high-quality construction ensures they will last a long time. Whether you're a professional metalworker or a DIY enthusiast, these cut off wheels will help you get the job done quickly and efficiently. Their 40 grit designation means they are suitable for cutting through tough materials, and their brand name ensures you're getting a product you can trust. Order your 3-pack today and take your metalworking skills to the next level.