United Abrasives 52890 High Performance Fiber Disc | 4-1/2" Diameter | 7/8" Arbor Hole | 3A Aluminum Oxide 36 Grit | 13300 Max RPM | Bulk Packaging (100 PCS per Spindle)

United Abrasives 52890 High Performance Fiber Disc is a premium-quality 4-1/2 inch sanding and grinding disc engineered for metal fabrication, welding, and surface preparation. Constructed with 3A Aluminum Oxide abrasive grain, this 36 Grit Fiber Disc provides aggressive stock removal, long life, and consistent cutting performance. The 7/8 inch arbor hole allows easy mounting on standard angle grinders, making it a perfect choice for professionals working with steel, stainless steel, and ferrous metals. Designed for heavy-duty grinding, deburring, and blending applications, this high performance abrasive disc runs at up to 13,300 RPM, ensuring fast material removal and a smooth, even surface finish. The resin-over-resin bond and sturdy vulcanized fiber backing enhance durability and resistance to heat and wear, allowing longer use under high pressure and high-speed operations. Whether you're in metalworking, fabrication, maintenance, or construction, the United Abrasives Fiber Disc delivers high productivity, superior finish, and cost-effective performance.

Type: Fiber Disc | Abrasive Material: 3A Aluminum Oxide with Grinding Aid | Diameter (in.): 4-1/2 | Arbor Hole (in.): 7/8 | Grit: 36 | Max RPM: 13300 | Application: Blending, Grinding | Box of: 100 | __quantity: 100

Features:

• Premium aluminum oxide grain for fast, aggressive cutting
• Strong fiber backing for durability and long life
• Cool grinding action reduces heat and surface burn
• Ideal for weld removal, blending, and metal surface prep
• Consistent finish with less downtime

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For help choosing the correct United Abrasives Fiber Discs for your application, please call (800) 608-5210 or email info@intlairtool.com