Brand new and never opened.

The Rdigid 4-1/2 in. Diamond Turbo Cup Wheel is a high-quality grinding wheel designed for metalworking applications. With a 4.5-inch diameter and a 2-inch thickness, this straight cup grinding wheel is made with diamond abrasive material and has a grit of 14. It can operate at a maximum speed of 13,300 RPM, making it suitable for a variety of metal grinding tasks. The arbor hole size is 5/8 inch-11, ensuring compatibility with a range of machinery.