Designed for heavy duty cut-off jobs Ensure optimum effectiveness for dry applications Cut-off wheels are double reinforced with two layers of fiberglass

From the Manufacturer Firepower Double Reinforced Cut-Off Wheels are designed for heavy duty cut-off jobs using circular saws, chop-saws and straight grinding machines. They ensure optimum effectiveness for dry applications on a broad range of ferrous and non-ferrous metals, soft ceramics, masonry materials, reinforced plastic and fiberglass. Most Firepower cut-off wheels are double reinforced with two layers of fiberglass.