This disc provides high-performance cutting with an excellent wheel life ratio. The premium quality disc features two fiberglass reinforcements for extra safety and durability, and is bonded with high-quality Bakelite resin for better cutting and grinding on all types of metal. The Safeline Steel Cutting Disc 4.5" X1.0 is engineered for high-performance cutting, making it suitable for various metalworking applications. Its construction with two fiberglass reinforcements offers enhanced safety and durability, ensuring a reliable cutting experience. The disc is also bonded with high-quality Bakelite resin, facilitating superior cutting and grinding on all types of metal surfaces.