3M 7000121877 Surface Conditioning Abrasive Disc 5 Inch

Product Description

The 3M 7000121877 is a Surface Conditioning GP abrasive disc designed for deburring, blending, and cleaning operations on aluminum and other soft metals. Built on a flexible GP substrate with an Aluminum Oxide abrasive, it delivers high initial cut rate and maintains that cut rate over extended use. The 5-inch diameter disc accepts a 0.62-inch arbor and is rated Medium grade, making it a practical choice for blending and light material removal without aggressive stock removal. Licensed trades and metalworking shops rely on this disc for consistent surface prep results.

This disc suits applications requiring low contact pressure and resistance to loading, including work on ferrous and non-ferrous flat and contoured surfaces. It is well matched to deburring, coating removal, surface finishing, and blending operations in fabrication, HVAC sheet metal work, and general metal finishing environments. The flexible GP backing allows the disc to conform to contoured workpieces, maintaining consistent abrasive contact across irregular profiles.

Key Features

• Aluminum Oxide abrasive on GP material for high initial and extended cut rate
• Flexible backing conforms to flat and contoured surfaces
• Medium grade suited for blending, coating removal, and light deburring
• High edge durability for consistent performance through the disc life
• Performs efficiently on ferrous and soft non-ferrous metals including aluminum
• Resists loading under low contact pressure conditions

Compatibility

Designed as a direct-fit replacement disc for 5-inch random orbital and right-angle grinders accepting a 0.62-inch arbor. Refer to your tool manufacturer specifications to confirm arbor and disc size compatibility before installation.

Installation Notes

Installation and disc changes must be performed with the grinder unplugged or the air supply disconnected. Inspect the disc for damage or wear before mounting and confirm the arbor size matches the disc bore. Follow applicable ANSI B7.1 safety standards for abrasive wheel mounting and use. Always wear appropriate eye and face protection during operation.

Technical Specifications

• Disc Diameter: 5 inches
• Arbor Size: 0.62 inches
• Abrasive Material: Aluminum Oxide
• Grade: Medium
• Backing Type: GP Surface Conditioning Material
• Package Weight: 7.4 pounds
• Package Length: 12.38 inches
• Package Width: 12.38 inches
• Package Height: 5.75 inches
• Unit of Measure: Each
• UPC: 051115331751

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121877