The Bosch 4-1/2" Wheel Diameter X-LOCK Arbor Carbon Steel Full Cable Knotted Wire Wheel (WBX428) features the X-LOCK mount and offer a wheel change that's up to five times faster than conventional interfaces. There’s an audible snap when mounting an X-LOCK Wheel on an X-LOCK grinder. The wheel mounts properly without the need for a spanner wrench or flange nuts. The wheel is released from the grinder with the pull of a lever. This high-quality crimped tempered steel features maximum wire density for long life, to de-burr gears, remove oxides, scale, flash, and for edge blending. Bosch cable-knotted, stringer bead and crimped wire wheels are ideal for deburring metal, bead weld prep, cleaning welds, edge blending and more. The precision-balanced wheel and robust construction allows for professional applications.