-Off Abrasive Wheels, Type 1 (For Metal), 4-1/2” x 1/8” x 7/8 Firepower Double Reinforced -Off Wheels are designed for heavy duty -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 fiber glass. Most Firepower -off wheels are double reinforced with two layers of fiber glass. 1423-3185 Yes - CARBON MONOXIDE