General description The Set of 42 aluminum oxide grinding discs features grinding bits with a 1/8 inch shank, designed for grinding, polishing, and deburring metals. These grinding heads are made from high-quality materials, similar in hardness to white corundum, ensuring they are strong, sharp, and durable. They are ideal for use on various materials including stone, glass, metal, stainless steel, and gemstones. Technical specifications Material: Aluminum oxide Shank size: 1/8 inch Quantity: 42 discs Usage Suitable for grinding and polishing stone, glass, metal, stainless steel, and gemstones. Unique pointed ball shape allows access to tight spaces and various surface types, including curved, flat, and grooved surfaces. Provides excellent polishing effect on stainless steel and other metals without causing noise and dust. Other information For safety, wear protective equipment when using the grinding bits. Ensure the shank is fully inserted into the chuck and secured before use.