The MILWAUKEE® 3" Multi-Material Diamond Blade is the most versatile blade for cutting applications. The vacuum-brazed diamond grit cutting edge delivers up to 100X longer life in metal vs. an abrasive wheel, while the vented segments help keep the blade cool and ensure consistent cuts throughout the life of the blade. A solid steel core maintains diameter and cut depth throughout the blade's life, ensuring stable performance over repeated use. This diamond blade is for use in metal, wood, masonry, plastic, laminate, fiber cement, ductile, and tile, and is designed for use with a 3" Cut Off Tool. It features a 3/8" arbor size, a max RPM of 20,000. For dry use only.