This Bosch PRO X571 Flap Disc is a 115mm diameter disc with a coarse 40 grit, designed for aggressive stock removal and rapid material stripping on metal surfaces. The coarser grit makes it an ideal first-pass disc when tackling welds, rust, or heavily scaled steel. Performing up to 1.5x faster than a Bosch X431 Flap Disc, the PRO X571 is engineered for speed without sacrificing control. The advanced grain fusion of aluminium oxide and zirconia retains sharpness even in hardened steel, prolonging disc life and maintaining cutting performance throughout the job. The durable X-cloth backing provides a stable grinding platform, allowing you to work confidently at pace. Compatible with X-Lock fitment for tool-free disc changes, as well as standard nut-and-thread angle grinders. Features and Benefits: • Up to 1.5x faster than a Bosch X431 Flap Disc • Coarse 40 grit ideal for heavy stock removal and surface preparation • Advanced grain fusion of aluminium oxide and zirconia for enduring sharpness on hardened steel • X-cloth backing ensures stable grinding position for faster work with no loss of finish • Compatible with X-Lock and nut-and-thread angle grinders Specifications: Diameter: 115mm Grit: 40g Pack Quantity: 1 Contents: • Pack of 1