- Ceramic-bonded grinding wheels, based on refined corundum. - Great resistance. - High abrasive power. - Hardness: tender. - Granulometry: average. - Form: cylindrical. - Maximum rotational speed: 60,000 min -1. - Recommended rotation speed: 30,000 min - 40,000 min -1. - Color: brown. - Rod length: 35. **For further product information, please contact Chat Support**