General-purpose portable saw wheel for metal cutting - rebar, steel pipe, sheet metal and structural sheet. 1/4 in arbor, 1/8 in thick. Thick fiberglass to withstand extreme applications and hold up to high speed saws. Thick fiberglass to withstand extreme applications and hold up to high speed saws. Premium grain for added wheel life and speed. Specially formulated to provide fast, free cutting and good life. High quality resin bonds for product consistency and quality. Maximum rpm, 5500. A24R grit.