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3M™ Diamond Cloth Belt 641WY is engineered with micron-graded diamond, a long-lasting resin bond and a durable, water-resistant X-weight cloth backing, making it ideal for grinding and polishing ceramics, carbide, cast iron and other hard-to-grind materials.

• Available in grades 100mesh through 1800mesh
• Diamond mineral encapsulated in a ceramic bead provides consistent finishes on tough metals and ceramics
• Diamond mineral for hard-to-finish materials like stone, glass, ceramic, carbide and composites
• Heavy duty, cloth backing is waterproof for use with coolant
• X-weight cloth backing