The 3M™ Fibre Disc 381C is a versatile and general-purpose metalworking disc designed for various applications, including grinding, weld removal, finishing, and blending on common metals like carbon steel.

• You get 9 discs, never used
• Abrasive Material: Coated Aluminum oxide.
• Grit: 80 (indicating medium coarseness).
• Diameter: 9 1/8 inches.
• Backing Material: Fibre.
• Maximum RPM: 6600.