?Upgrade your grinder with these WA WHITBY ABRASIVE's high-quality wheels, designed for a multitude of tasks. With a 3/8-inch arbor zip cut and an included holder mandrel kit, these accessories are perfect for all your cutting and grinding needs. Whether it's metal, steel, tile, or wood, these discs deliver precision and durability, ensuring a smooth and efficient operation. Safety is our priority, so trust in these aluminum oxide grain discs to provide a secure, reliable, and long-lasting solution. To reduce the risk of injury: wear proper eye, face, body, and respiratory protection. Do not drop. Comply with ANSI B7.1 &OSHA. Do not exceed the max RPM marked on the wheel. Use proper guards.