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5" x 7/8" Aluminum Oxide Resin Fiber Disc - 25 pack

SKU BM-RFD50A16_25
Original price $0.00 - Original price $0.00
Original price $0.00
$12.99 - $12.99
Current price $12.99

Product Specification


Benchmark Abrasives 5" Aluminum Oxide Resin Fiber Discs are made by electrostatically depositing grains of Aluminum Oxide on heavy-duty vulcanized fiber backing with heat-resistant phenolic resins. These discs are resistant to heat, glazing, and loading, and are excellent on ferrous and non-ferrous metals. We offer these discs in 6 sizes: 4", 4-1/2", 5", 6", 7", 9 1/8" and a grit range from 24 grit to 120 grit. For use on all right-angle grinders.

These resin fiber discs are designed for the toughest applications and can be used on metal, wood, fiberglass, plastics & composites. The vulcanized fiber backing gives strong support for the grain & helps transfer the pressure to the workpiece for maximum stock removal.

Aluminum Oxide (A/O) is the most commonly used grain at an economical price point.  If you are looking for more aggressive stock removal or a premium option, check out our Zirconia and Ceramic options.

Quantity: 25 piece

Use in combination with our 4-1/2 x 5-8”-11 Rubber Backing Pads

**Pads sold separately**


  • Outer Diameter – 5”
  • Inner Diameter – 7/8”
  • Grain – Aluminum oxide (A/O)
  • Available Grits – 24, 36, 50, 60, 80, 120
  • Backing – Vulcanized Fiber from Germany
  • Max RPM – 12,200

Machines Used On:

  • Right Angle Grinders
  • Use in combination with our 5” x 5/8”-11 Rubber Backing Pads – Backing pads are required for tool use.


  • Ferrous Materials – Cast Iron, Steel, Stainless, Steel, Titanium, Nickel, Wrought Iron
  • Non-Ferrous Materials - Copper
  • Other Materials – Fiberglass, Plastic, Hard Rubber, Wood, Stone

Safety Tips & Techniques:

  • Always wear proper PPE to include (but not limited to) safety glasses, hearing protection, respirator, and hand protection.  Keep all guards in place on your machine.



You read that right, Free shipping on orders over $100 + Orders placed before 12 noon PST = SHIP SAME DAY! Orders placed after noon will ship the following day.

Standard FREE shipping is UPS Ground or USPS priority depending on size and weight. Most customers receive their order within 3-5 days from date of purchase. Faster shipping options available for additional charge. Free shipping not available on international orders. Free shipping will only be available to orders being delivered within the lower 48 states.


Not happy with your product? Welcome to hassle free returns. Just shoot us an email, call the toll free number or click the chat button below. One of our helpful employees will get you set up with an RGA and return shipping info.

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