100% next-generation, uniquely-shaped, ceramic alumina abrasive grain and tough new bond system Significantly increase production, for the lowest total grinding cost of any wheel in the market place today 1/4 inch thick wheels are designed for offhand 400 series stainless, hard carbon steels, soft carbon steels stock removal, smoothing welds, and beveling Better operator control, improved comfort, and exceptional finished part quality with a more robust, sharper, yet smoother cutting action; wheels don’t grab or dig.