HIGH QUALITY AND DURABILITY - The angle wheel is made of high-quality tungsten steel with high hardness, good heat dissipation after high-temperature heat treatment, and a very long service life. EFFICIENT AND DURABLE - On the surface of this angle grinder, there are hundreds of very sharp teeth that can be quickly polished and removed, which significantly improves work efficiency. PROFESSIONAL USE OF CURVED SURFACES - This type of angle grinding disc is suitable for processing the inner surface of the shell and other curved surfaces, especially convex and concave parts. SAWTOOTH DESIGN - The edge of the angle grinder is made of saw teeth to ensure smooth and controllable grinding and polishing and maximize grinding performance. High-quality material The grinding disc is made of high-quality carbon steel, high hardness, wear resistance, good heat dissipation, sharp and durable. Compatibility Outer diameter: 125 mm, center hole diameter: 22.23 mm, suitable for all 125 mm angle grinders.