This Bosch PRO X571 Flap Disc is supplied as a single 125mm disc in a coarse 40 grit — built for heavy-duty stock removal on metal at speed. The larger 125mm diameter gives you a greater contact area, making this variant particularly effective on broader surfaces where you need to shift material fast. The 40g grit is aggressive enough for weld removal, heavy deburring, and rapid shaping, performing confidently on both mild and hardened steel. Advanced aluminium oxide and zirconia grain fusion drives cutting speed up to 1.5x faster than a Bosch X431 Flap Disc, while the durable X-cloth backing maintains a stable grinding position under load — keeping your work controlled and consistent throughout. Features and Benefits: • Up to 1.5x faster than a Bosch X431 Flap Disc • Advanced grain fusion of aluminium oxide and zirconia for extra-fast stock removal, even on hardened steel • Durable X-cloth backing ensures a stable grinding position for faster work with no loss of finish • 22.23mm bore fits standard locking nut angle grinders Specifications: Diameter: 125mm Grit: 40g Bore: 22.23mm Pack Quantity: 1 Contents: • Pack of 1