-Off Abrasive Wheels, Type 1 (For Metal), 4” x 1/16” x 5/8”, 5pc. 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. 1423-3157 Yes - CARBON MONOXIDE