Wire wheels with the X-LOCK mount design – offers a faster, fixed mount and high-quality materials X-LOCK wheel change – features snap-on wheel mounting and a release lever for change-out that's up to five times faster Tool-free disc swap – the wheel mounts properly without the need for a spanner wrench or flange nuts for no losable parts High-quality crimped tempered steel – features maximum wire density for long life, to de-burr gears, remove oxides, scale, flash, and for edge blending Robust applications for metal – designed to be ideal for deburring metal, bead weld prep, cleaning welds and edge blending