The 3-1/8” Stainless Steel Knot Wire Cup Brush offers continuous brushing action for aggressive material removal. It is excellent for removing rust, scale, and weld splatter. The corrosion- and heat-resistant stainless-steel wire and durable construction make it suitable for use on stainless material. The X-LOCK quick change system provides up to 5x faster cup brush changes vs. a standard angle grinder mount. Simply pull the release lever on the X-LOCK Angle Grinder and change the wire cup brush—no tools needed. For use with Makita® X-LOCK Angle Grinder models XAG25, XAG26 and GA4570 (sold separately).