Discover this 11-pack set of 2 in. die grinder cut-off wheels and a mounting mandrel holder. The cut-off wheels, measuring 2 in. in diameter, 1/16 in. thick, with a 3/8 in. arbor, can reach a maximum speed of 30,000 RPM. The mounting mandrel has 3/8 in. and 1/4 in. arbor holes and 2 different thread heads. Made of proprietary alumina particles and high-quality resin, reinforced with glass fiber mesh, the cutting discs offer fast cutting action. The A3 carbon steel mandrel with a black plated finish is durable and rust-resistant. Compatible with 1/4 in. collet die grinders and power drills, it's perfect for cutting through various metals like steel, bronze and brass. It provides high-speed, efficient cutting with less noise, dust and burrs, making it a great tool for DIY projects and professional use.