30 grit Grinding Wheels | McMaster-Carr
A good value for everyday use, these wheels offer an economical balance between heavy material removal and long life. They are also known as Type 27 wheels, raised-hub wheels, and grinding discs.. Wheels are aluminum oxide, which is the most common abrasive used in grinding metal. Use for grinding surfaces and removing weld seams. The 1/8" and 3/16" …