7/8″ (22mm) Dedeco Sunburst TC Standard-Profile Radial Discs – Loose Discs & 4-Ply Sets with Mandrel

Price range: £1.60 through £2.25

Versatile Dedeco Sunburst 7/8″ TC radial bristle discs for controlled cleaning, deburring, blending, finishing and polishing with micromotors, flexible shaft machines and compatible rotary tools.

Bristle profile: Standard-profile Dedeco TC curved bristles, equivalent to Type C terminology, for flexible and conformable finishing
Loose-disc format: One individual 7/8″ disc with a 1/16″ (1.6mm) centre hole; compatible MM503 mandrel required and sold separately
4-ply set: Four matching discs supplied with a 2.35mm (3/32″) MM503 screw-top mandrel for building one wider working wheel
Grades: 80, 120, 220, 400 and 600 grit, plus 6 micron and 1 micron
Operating range: 3,000-18,000 RPM; approximately 5,000 RPM for woodworking

Choose a loose disc for individual use, replacement or building your own stack with an existing MM503 mandrel.

Choose the 4-ply set for four matching discs and a compatible 2.35mm mandrel in one complete package.

Moleroda Product Code: DED-TC-SMALL

Supply Format

Grit / Grade

Clear

SKU: DED-TC-SMALL Categories: Abrasives for Power Tools, Dedeco Sunburst Radial Discs, Mops & Wheels, Small Radial Discs, Unmounted Abrasive Mops & Wheels Tags: 1.6mm Centre Hole, 3D Printed & AM Tech, Abrasive, Deburring, Jewellery, Machine Driven Accessories, Mould Tools, Plastics & Non Metals, Polishing, Precision Engineering

Description
Additional information

Versatile 7/8-inch TC Finishing in Loose and 4-Ply Formats

Dedeco Sunburst 7/8″ TC radial bristle discs provide a compact and versatile finishing system for cleaning, deburring, blending and polishing small components, contours and detailed surfaces.

Abrasive is distributed throughout the moulded polymer bristles, allowing fresh cutting points to remain available as the bristle tips wear. The standard TC profile combines useful surface coverage with the flexibility needed to follow curves, edges and irregular geometries.

Choose between a single loose disc for individual use or configurable stacking and a 4-ply set with mandrel containing four matching discs and the mounting required to build one wider working wheel.

Why Choose TC Bristles?

Flexible Contour Conformity

Dedeco TC bristles—also described as Type C in comparable radial bristle systems—use a curved and flexible construction that follows contours, profiles and detailed surfaces.

Versatile Standard Profile

The standard-profile disc balances working-face coverage with precise control, making it suitable for general finishing where Dual or Knife-Edge constructions are not required.

Configurable Working Width

Use a single disc for narrow contact or stack matching discs on an MM503 mandrel to create a broader and more stable working face.

Standard Profile, Dual or Knife-Edge?

Choose the standard TC profile for versatile cleaning, blending and polishing across general components, contours and accessible details.

Choose Dual discs when faster cutting and heavier deburring are required, or Knife-Edge discs for grooves, prongs, channels and other narrow-access areas.

View 7/8-inch Dual Radial Discs

View 7/8-inch Knife-Edge Radial Discs

Typical Applications

Removing oxidation, light fire scale and surface contamination
Cleaning and refining cast jewellery and small precision components
Light deburring around edges, profiles and machined features
Blending surface marks and transitions between worked areas
Smoothing and preparing surfaces before finer finishing stages
Cleaning contacts, detailed castings and intricate geometries
Fine finishing and pre-polishing with the finer grades

Suitable Materials

These discs can be used across suitable precious and non-ferrous metals, steel, stainless steel, aluminium, brass and bronze. They are also suitable for selected wood, acrylic and plastic applications.

Always test the selected grade on an inconspicuous area first, particularly on softer, coated or heat-sensitive materials. Begin with the finest grade capable of producing the required result.

Choose a Loose Disc or 4-Ply Mandrel Set

Single Loose Disc

The loose format is one individual 7/8″ standard-profile TC disc with a 1/16″ (1.6mm) centre hole. A compatible MM503 screw-top mandrel is required and sold separately.

Supplied as one loose radial bristle disc
Use individually or stack matching discs to increase the working width
Compatible with MM503 mandrels in 2.35mm and 3mm shank options
Mandrel is not included

Use matching discs of the same grade and align every disc in the same direction of rotation when building a stack.

4-Ply Set with 2.35mm Mandrel

This format contains four matching discs of one grade and a 2.35mm (3/32″) MM503 screw-top mandrel. Once assembled, the set forms a wider 4-ply radial wheel with a more stable working face.

Four matching standard-profile TC discs
One 2.35mm MM503 screw-top mandrel
Discs are supplied loose for protection during transit
Thread all four discs onto the mandrel before use

If your machine requires a 3mm shank, choose loose discs and the separate 3mm MM503 mandrel instead.

View the MM503 Screw-Top Mandrel

Grades & Selection

Colour	Grade	Typical Use
Yellow (Coarse)	80 Grit (Aluminium Oxide)	Heavy cleaning, deburring and initial surface conditioning
White (Medium)	120 Grit (Aluminium Oxide)	Light deburring, smoothing and controlled blending
Red (Standard)	220 Grit (Aluminium Oxide)	Surface blending, scratch refinement and preparation for finer finishing
Blue (Fine)	400 Grit (Aluminium Oxide)	Fine finishing, satin finishing and surface smoothing
Pink (Pumice)	600 Grit (Pumice)	Pre-polishing and preparation for micron finishing
Peach (Extra-Fine)	6 Micron (Aluminium Oxide)	Fine polishing and development of an initial lustre
Light Green (Ultra-Fine)	1 Micron (Aluminium Oxide)	Final high-lustre and highly refined finishing

Operating & Safety Guidance

Operating range: 3,000-18,000 RPM
Woodworking reference speed: Approximately 5,000 RPM
Never exceed the lowest maximum speed stated for the disc, mandrel or machine
Confirm that the mandrel shank matches the tool or collet before use
Do not use these 1.6mm-centre discs with an MM304 mandrel
When stacking discs, use matching grades and align every bristle in the same direction
Install the discs so the tail of each curved bristle follows the direction of rotation
Tighten the screw-top mandrel securely before starting the machine
Use the bristle tips with light pressure and avoid excessive side loading
Keep the tool moving to control localised heat and uneven wear
Use appropriate personal protective equipment and machine guarding

Product Specifications

Product range	Dedeco Sunburst
Nominal diameter	7/8″ (approximately 22mm)
Disc profile	Standard-profile TC curved and conformable (Type C)
Bristle characteristics	Flexible and single-directional
Abrasive grain	Aluminium oxide; 600 grit uses pumice
Available grades	80, 120, 220, 400 and 600 grit, 6 micron and 1 micron
Supply formats	Single loose disc or four-disc set with 2.35mm mandrel
Centre hole	1/16″ (approximately 1.6mm)
Loose-disc mounting	Compatible MM503 screw-top mandrel required; not included
Loose-disc stacking	Use individually or stack three to six matching discs, depending on the application
4-ply set contents	Four matching discs and one MM503 screw-top mandrel
Included mandrel shank	2.35mm (3/32″)
Operating range	3,000-18,000 RPM
Woodworking reference speed	Approximately 5,000 RPM
Suitable equipment	Micromotors, flexible shaft machines, jewellery handpieces and compatible rotary tools
Polishing compound required	No

Complete Your Radial Finishing Setup

Mounting Loose Discs

Choose an MM503 screw-top mandrel with the shank size required by your micromotor, handpiece or flexible shaft system.

Need Faster Cutting?

Choose 7/8″ Dual discs for heavier deburring, fire-scale removal and more aggressive first-stage cleaning.

Need Narrower Access?

Choose 7/8″ Knife-Edge discs for prongs, grooves, channels and other restricted or recessed areas.

Browse the Full Range

Browse All Radial Bristle Discs

Browse All Small Radial Discs

View All Dedeco Sunburst Discs

Weight	0.01 kg
Disc Size / Diameter	22mm / 7/8"
Arbor (Centre Hole)	1.6mm / 1/16"
Disc Type	Standard
Bristle Type	Curved – TC / Type C
Supply Format	Single Loose Disc (No Mandrel), 4-Ply Set with 2.35mm Mandrel
Grit / Grade	80 Grit – Coarse (Yellow), 120 Grit – Medium (White), 220 Grit – Standard (Red), 400 Grit – Fine (Blue), 600 Grit – Pumice (Pink), 6 Micron – Extra-Fine (Peach), 1 Micron – Ultra-Fine (Light Green)
For use on	Metal, Wood, Plastic
Tool	Rotary Tool, Micromotor, Flexible Shaft Machine, Dremel, Pencil Grinder