DIABLO 4-1/2 in. x 1/4 in. x 7/8 in. Metal Grinding Disc with Type 27 Depressed Center DBD045250701F - The Home Depot

Diablo 4-1/2 in. x 0.040 in. x 7/8 in. Thin Kerf Metal Cut-Off

Makita INOX Grinding Wheels are designed for grinding steel and stainless steel for added versatility. The innovative design produces less noise and vibration for an improve user experience and increased efficiency. The high strength bonding agent and high quality reinforcement provide improved efficiency and durability as well.

Makita - A-95984 - 4-1/2 in. x 1/4 in. x 5/8-11 in. INOX Grinding Wheel, 36 Grit

DIABLO's premium Type 27 metal cut-off discs deliver superior performance and increased productivity. Features a premium aluminum oxide blend that produces quick cuts and offers an extra-long cutting life. Unlike other bonded discs on the market, these discs feature a true 1/16 in. design. Designed to be backwards compatible, these discs work with X-Lock and 7/8 in. arbor angle grinders when cutting metal and stainless steel.