3M 07481 Scotch-Brite Roloc Surface Conditioning Disc 2 in Medium | Aluminum Oxide Non-Woven Disc 25-Pack

3M 07481 Scotch-Brite Roloc Surface Conditioning Disc 2 in Medium Grit — Aluminum Oxide Non-Woven Disc for Cleaning, Finishing, Blending & Deburring Metal | 25-Pack

The 3M Scotch-Brite Roloc Surface Conditioning Disc is a durable, non-woven aluminum oxide abrasive disc designed for cleaning, finishing, blending, and deburring metal surfaces using a drill or angle grinder fitted with a 3M Roloc quick-change mandrel. The non-woven construction conforms to irregular and contoured surfaces, making it effective on curved marine hardware, weld areas, and complex metal shapes where flat abrasive discs would bridge. The 2 in. diameter and Roloc twist-lock attachment system allow fast disc changes without tools. Medium grit (maroon color in the 3M Scotch-Brite color-coding system) is the general-purpose conditioning grade for metal surface preparation, weld blending, light oxidation removal, and surface finishing prior to painting, coating, or final polishing. 25 discs per package.

Part Specifications

• Part Number: 3M-07481
• Quantity: 25 discs per package
• Diameter: 2 in.
• Grit Grade: Medium
• Color: Maroon (3M Scotch-Brite medium grade color code)
• Abrasive Type: Aluminum oxide
• Construction: Non-woven — conforms to curved and irregular surfaces
• Hole: No hole
• Attachment: 3M Roloc quick-change twist-lock
• Application: Clean, finish, blend, and deburr metal surfaces
• Tool Required: Drill or angle grinder with 3M Roloc mandrel/holder (sold separately)

Roloc System & Compatible Tools

The 3M Roloc system uses a proprietary twist-lock attachment that allows discs to be changed quickly without tools — press, twist, and lock onto a compatible Roloc mandrel mounted in a drill or die grinder. The 2 in. Roloc discs are compatible with 2 in. Roloc mandrels (also called holders or disc holders). The mandrel is sold separately and is not included with the disc package. Common Roloc mandrel options for drill or die grinder use include the 3M Roloc Disc Pad (TS or TSM configuration depending on thread direction). Verify mandrel thread direction (standard or reverse) is compatible with your tool before ordering.

The Scotch-Brite non-woven construction is distinct from fiber or resin-bonded abrasive discs — it does not leave deep scratches, conforms to surface contours, and is particularly effective for surface conditioning on stainless steel, aluminum, and other marine metals where a consistent, non-directional surface finish is desired.

Application Notes

• Mount on a 2 in. 3M Roloc mandrel in a drill or die grinder — the Roloc mandrel is sold separately and is not included
• Medium grit (maroon) is suited for general metal surface conditioning, weld blending, light oxidation removal, rust spot treatment, and surface preparation before painting or coating
• For lighter finishing or final surface conditioning before painting, step down to fine grit (blue); for heavier stock removal or aggressive surface conditioning, step up to coarse grit
• The non-woven construction conforms to curved and contoured surfaces — use light to moderate pressure and let the abrasive do the work; excessive pressure compresses the non-woven material and reduces cutting efficiency
• Safe on stainless steel, aluminum, steel, brass, and bronze — produces a consistent, non-directional surface finish suitable for welding prep, coating adhesion prep, and decorative finishing
• Replace discs when cutting efficiency noticeably decreases or when the non-woven material becomes loaded with metal debris

Additional Information

• Vendor: 3M
• SKU: 3M-07481
• Product Type: Refinishing / Surface Conditioning Disc
• Size: 2 in. diameter
• Pack Quantity: 25 discs
• Country of Origin: USA
• HS Code: 6805.20 (abrasives on a base of woven textile, paper, paperboard or other materials — verify for your import classification)

Frequently Asked Questions

Q: Do I need a special tool or attachment to use these discs?
A: Yes — these discs require a 3M Roloc mandrel (also called a disc holder or disc pad) mounted in a drill or die grinder. The mandrel is sold separately and is not included in this package. Make sure you have a 2 in. Roloc mandrel, and verify the thread direction (standard or reverse) is compatible with your specific tool before ordering the mandrel.

Q: What does medium grit mean for a Scotch-Brite non-woven disc, and when should I use it?
A: In the 3M Scotch-Brite color-coding system, maroon = medium grade. Medium is the general-purpose conditioning grade — use it for weld blending, light oxidation and rust spot removal, surface preparation before painting or coating, and general metal surface conditioning. For lighter work or final surface prep before painting, use fine (blue). For heavier stock removal or aggressive conditioning, use coarse.

Q: How is a non-woven Scotch-Brite disc different from a sandpaper disc?
A: Non-woven abrasive discs like Scotch-Brite are made from intertwined fibers with abrasive mineral embedded throughout, rather than abrasive grains bonded to a paper or film backing like sandpaper. The non-woven structure conforms to curved and irregular surfaces, produces a consistent non-directional surface finish without deep scratching, and is self-cleaning (the abrasive material is distributed through the thickness, not just on the surface). This makes them particularly effective for surface conditioning on contoured marine hardware where sandpaper would bridge or leave uneven scratch patterns.

Q: Is this disc safe to use on stainless steel and aluminum marine hardware?
A: Yes — Scotch-Brite non-woven discs are widely used on stainless steel, aluminum, steel, brass, and bronze. For stainless steel, non-woven conditioning discs are preferred over steel wire wheels or coarse abrasives because they produce a consistent finish without contaminating the surface with carbon steel particles that cause rust staining on stainless.

Q: How many discs are included, and how long do they typically last?
A: 25 discs are included per package. Disc life depends on the metal type, surface condition, tool speed, and pressure applied. Non-woven discs tend to last longer than comparable sandpaper discs on light-to-medium conditioning work. Replace when cutting efficiency noticeably decreases or when the disc becomes loaded with metal debris and no longer cuts cleanly.