7/8″ (22mm) Dedeco Sunburst TC Radial Bristle Discs – 4-Ply Assembly Sets
£9.26
The complete, ready-to-use 4-ply finishing setup.
Best for: Faster setup, general finishing, blending, and wider surface contact
Convenience: Includes four matched 7/8″ TC radial discs and an MM503 mandrel
Performance: 4-ply configuration provides a wider, more stable working face
These genuine Dedeco Sunburst 7/8″ TC 4-ply mounted sets provide a complete, ready-to-use finishing solution.
Each set includes four matched radial discs and an MM503 screw-top mandrel (2.35mm), giving you a wider working face, improved durability and consistent performance straight out of the box.
Diameter: 7/8″ (22mm)
Contents: 4 × TC radial discs + 1 × MM503 screw-top mandrel
Shank size: 2.35mm (3/32″) – Fits most micromotors, pendant motors and jewellery handpieces using a 2.35mm collet.
Grit range: 80 grit to 1 micron
Key Benefits
- Eliminates setup guesswork – the perfect density for general finishing
- Wider contact area allows for faster material removal on larger surfaces
- Embedded abrasives ensure a consistent finish throughout the life of the tool
Mandrel note:
Supplied with a 2.35mm MM503 mandrel. If your tool requires a 3mm shank, choose individual 7/8″ discs and a separate 3mm MM503 mandrel.
Moleroda Product Code: 78DED4PLY
A Complete 4-Ply Finishing System
The Dedeco Sunburst 7/8″ TC 4-ply mounted set is designed for users who want a consistent, ready-configured finishing tool without the need to assemble individual discs.
By supplying four discs of the same grade along with a matched mandrel, this set ensures correct setup and performance from the outset—eliminating the trial-and-error often associated with building your own stack.
When multiple discs are stacked together, the bristles overlap to create a denser, more stable abrasive surface.
The 4-ply stack acts as a single, unified brush. This density prevents individual discs from splaying, ensuring that even when working on flat surfaces, the abrasive pressure remains uniform.
This results in:
Wider Working Face
Covers more surface area per pass, improving efficiency.
Improved Consistency
A more even contact across the workpiece reduces uneven finishing.
Extended Working Life
Load is distributed across multiple discs, reducing wear rate.
Balanced Performance
Maintains flexibility while providing enough density for effective material removal.
Typical Applications
Jewellery & Casting
- Removing investment and oxidation
- Blending surfaces and preparing for polishing
Dental & Precision Work
- Finishing alloys and acrylics
- Cleaning detailed geometries
Engineering & tooling
- Deburring small components
- Surface conditioning and preparation
Compare the 7/8″ Range
Not sure which 7/8″ format is right for your job?
4-ply assemblies provide a ready-to-use finishing setup, while other 7/8″ formats offer specialist cutting or detailing options.
| Format | Best for |
|---|---|
| Standard discs | General cleaning, blending and polishing |
| Dual discs | Faster cutting and heavier deburring |
| Knife-edge discs | Grooves, prongs and tight detail areas |
| 4-ply mounted sets | Ready-to-use stacked setup with mandrel |
| Assortment kit | Trying the full grit range in one set |
Grit Range & Applications
Available across the full grit range:
| Colour | Grade | Typical Use |
|---|---|---|
| Yellow (Coarse) |
80 Grit (Aluminium Oxide) |
Heavy cleaning and deburring |
| White (Medium) |
120 Grit (Aluminium Oxide) |
Light deburring and smoothing |
| Red (Standard) |
220 Grit (Aluminium Oxide) |
Blending and surface preparation |
| Blue (Fine) |
400 Grit (Aluminium Oxide) |
Fine finishing |
| Pink (Fine) |
600 Grit (Pumice) |
Pre-polishing |
| Peach (Extra-Fine) |
6 Micron (Aluminium Oxide) |
Fine polishing |
| Light Green (Ultra-Fine) |
1 Micron (Aluminium Oxide) |
Final high finish |
Mandrel & Tool Compatibility
Each set includes an MM503 screw-top mandrel with a 2.35mm (3/32″) shank.
This is ideal for:
- Micromotors
- Jewellery handpieces
- Compatible flexible shaft systems
If your tool requires a 3mm shank, use standard 7/8″ Sunburst TC radial discs with the 3mm MM503 mandrel instead.
Setup & Operating Guidelines
Recommended speed:
3,000 – 18,000 RPM (5,000 RPM for woodworking)
Assembly:
Discs are supplied loose for protection during shipping. Thread all four discs onto the mandrel before use.
Orientation:
Ensure the curved bristles are aligned with the direction of rotation. The “tail” of the bristle should follow the rotation for optimal performance.
Technique:
Use light pressure and allow the bristles to conform naturally to the surface.
Complete Your Finishing Process
Need replacement discs?
Once the discs are worn, you can reuse the included mandrel with individual 7/8″ Sunburst TC radial discs.
Need more aggressive cutting?
Use 7/8″ Dual Discs for heavier fire-scale removal or faster first-stage deburring.
Need more precise access?
Use 7/8″ Knife-Edge Discs for grooves, prongs and tight detail areas.
Browse the Full Range
| Weight | 0.5 kg |
|---|---|
| Disc Size / Diameter | 7/8" (22mm) |
| Disc Stack | 4 |
| Arbor (Centre Hole) | 1/6" (1.6mm) |
| Shank Size | 3/32" (2.35mm) |
| Bristle Type | TC (Curved) |
| Grit / Grade | 80 Grit (Coarse) [Yellow] – Heavy Cleaning, 120 Grit (Medium) [White] – Light Deburring, 220 Grit (Standard) [Red] – Blending, 400 Grit (Fine) [Blue] – Fine Finishing, 600 Grit (Fine) [Pink] – Pre-Polish, 6 Micron (Extra-Fine) [Peach] – Fine Polishing, 1 Micron (Ultra-Fine) [Light Green] – Mirror Finish |
| Unit of Sale | Per Set (4x Discs + 1x Mandrel) |
| For use on | Metal, Wood, Plastic |
| Tool | Rotary Tool, Micromotor, Flexible Shaft Machine, Dremel, Pencil Grinder |
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