Specifications: Blade diameter: 125 mm Hole diameter: 22 mm ADHESIVE DISC NON-WOVEN FABRIC EXPERT N477 125MM MEDIUM Up to 4 times faster than a standard hob. Maximum removal performance with Bosch Surface Structure. Simple fastening with Velcro fastening. Ideal for levelling metal surfaces, e.g. after grinding a weld, for levelling metal surfaces before painting and for removing defects, rust and discoloration. The first choice for metalheads: fast and efficient. **