This Makes swapping hook and loop sandpaper discs fast and simple, to stay away from downtime. Be sure to Observe, In the event your sander doesn't have a suitable hook & loop backing, a backing pad is needed to be used, which we provide individually. Find Southwire Universal Strut Clamps https://www.hukums.com/products/xtra-power-xp-wm-300a-single-phase-300-amp-arc-welding-machine-with-igbt-technology