25mm 3M Scotch-Brite Radial Bristle Discs (Habras)
£1.32
Consistent surface conditioning and controlled finishing for industrial applications.
Best for: Weld blending, oxide removal, satin finishing and controlled surface refinement
Finish Quality: Flexible abrasive bristles deliver a more uniform, lower-aggression finish than wire brushes or harder radial systems
Setup: Compatible with MM304 secure-fit mounting or MM503 stacked-disc setups
The 3M Scotch-Brite 25mm (1″) radial bristle disc is the premium surface-conditioning option within the heavy-duty small radial disc range, designed for controlled cleaning, blending and finishing on metals, composites and engineered surfaces.
Unlike conventional wire brushes, the flexible abrasive-filled bristles conform to contours while continuously exposing fresh abrasive mineral throughout the life of the disc, helping maintain a predictable and consistent finish.
Diameter: 25mm (1″)
Centre Hole: 3mm
Recommended Mandrels: MM304 Screw-Top Mandrel or MM503 Screw-Top Mandrel (for stacked setups)
Format: Standard flexible curved radial bristle disc
Grit Range: 36 grit to 400 grit
Key Features
- Controlled cutting action with consistent finish quality
- Excellent for satin finishing and surface blending
- Flexible bristles reduce gouging and preserve detail
Mounting note:
MM304 provides the most secure centred fit for single-disc use.
MM503 is commonly used by professionals when stacking multiple discs together for wider surface conditioning.
Moleroda Product Code: 3MRADIAL
25mm Scotch-Brite Discs for Industrial Blending & Surface Refinement
The 25mm 3M Scotch-Brite radial bristle disc range is designed for users who prioritise finish consistency, controlled cutting action and surface refinement over aggressive material removal.
Its flexible abrasive-filled bristles conform to complex geometries while maintaining a predictable finish throughout the life of the disc, making it ideal for blending, satin finishing, weld cleanup and controlled surface conditioning.
Compared to more aggressive radial systems, the Scotch-Brite range provides a smoother, more refined cutting action that helps minimise gouging, harsh scratch patterns and excessive material removal.
Larger Contact Area
Provides faster coverage and more efficient surface blending than smaller 19mm or 5/8″ discs.
Better Surface Conformity
When stacked, multiple 25mm discs create a flexible abrasive mop ideal for curved or irregular surfaces.
Controlled Heavy-Duty Finishing
Combines the flexibility of Scotch-Brite bristles with larger-format stability for blending, weld cleanup and satin finishing.
Lower Heat Generation
The flexible abrasive structure helps reduce heat build-up and surface smearing during finishing.
Typical Applications
These radial surface conditioning discs are ideal for…
Fabrication & Weld Finishing
- Blending weld discoloration and heat tint
- Refining stainless steel surfaces
- Surface conditioning after abrasive preparation
Industrial Surface Conditioning
- Cleaning oxidation and light corrosion
- Producing brushed and satin finishes
- Removing contamination without wire brushing
Restoration & Maintenance
- Controlled cleaning of delicate metal surfaces
- Refining previously ground components
- Surface blending on visible finished parts
Grit Range
| Colour | Grade | Typical Use |
|---|---|---|
| Dark Brown (Ultra-Coarse) |
36 Grit | Heavy cleaning and aggressive surface preparation |
| Dark Green (Extra-Coarse) |
50 Grit | Weld cleanup and heavy deburring |
| Yellow (Coarse) |
80 Grit | Oxide removal and surface conditioning |
| White (Medium) |
120 Grit | General blending and smoothing |
| Red (Standard) |
220 Grit | Surface refinement and preparation |
| Blue (Fine) |
400 Grit | Fine satin finishing and scratch refinement |
Unlike the Dedeco 1″ range, the Scotch-Brite 25mm range focuses on controlled preparation, blending and refinement rather than ultra-fine polishing stages.
Mounting & Compatibility
These discs feature a 3mm centre hole, giving users two mounting approaches depending on the application.
MM304 Mandrel
(Recommended for Single Discs)
The MM304 uses a 3mm screw for a centred, secure fit and is the preferred option for:
- Single-disc use
- Secure centred mounting
- Controlled detailed finishing
MM503 Mandrel
(Recommended for Stacking)
Many professionals use the MM503 mandrel when stacking multiple 25mm discs together.
Although the MM503 uses a smaller 1.6mm screw, tightening several discs together against the mandrel shoulder creates a secure flexible abrasive mop ideal for broader surface blending and satin finishing.
Important:
MM304 = best for secure centred mounting
MM503 = best for wider stacked configurations
Compare Heavy-Duty Small Radial Discs
| Format | Best for |
|---|---|
| 3M Scotch-Brite™ 25mm discs | Controlled blending, satin finishing and consistent surface conditioning |
| Dedeco 1″ TC discs | Aggressive deburring, weld cleanup, oxide removal and heavier material removal |
Choose 3M Scotch-Brite when finish consistency, satin refinement and controlled surface conditioning are the priority.
Choose Dedeco Sunburst when aggressive cutting speed and heavier material removal are more important.
Operating Guidelines
Recommended Speed:
3,000 – 18,000 RPM
Setup:
- Stack 3 – 6 discs for improved flexibility and surface conformity
- Ensure bristle direction follows rotation direction
Technique:
- Use light to moderate pressure
- Allow the abrasive-filled bristles to perform the cutting action
- Progress through grades sequentially for best finish consistency
Complete Your Finishing Process
Secure Single-Disc Mounting
Use the MM304 mandrel for secure centred mounting during controlled surface conditioning and detailed finishing.
Need Wider Surface Blending?
Stack multiple discs on an MM503 mandrel to create a wider flexible finishing mop for satin finishing and contour blending.
Need More Aggressive Cutting?
Move to Dedeco 1″ TC radial discs for heavier deburring, aggressive oxide removal and faster material removal.
Browse The Full Range
| Weight | 0.01 kg |
|---|---|
| Disc Size / Diameter | 25mm (1") |
| Arbor (Centre Hole) | 3mm |
| Disc Type | Standard |
| Bristle Type | TC (Curved) |
| Grit / Grade | 36 Grit (Ultra-Coarse) [Brown] – Heavy Stock Removal, 50 Grit (Extra-Coarse) [Dark Green] – Stock Removal, 80 Grit (Coarse) [Yellow] – Heavy Cleaning, 120 Grit (Medium) [White] – Light Deburring, 220 Grit (Standard) [Red] – Blending, 400 Grit (Fine) [Blue] – Fine Finishing |
| Unit of Sale | Individual Disc (No Mandrel) |
| For use on | Metal, Wood, Plastic |
| Tool | Rotary Tool, Micromotor, Flexible Shaft Machine, Dremel, Pencil Grinder |
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