Dedeco Sunburst 7/8 inch Radial Discs - Professional Finishing & Polishing Dedeco Sunburst Radial Discs are widely used in jewellery making, engineering and precision finishing applications where control, consistency and access to fine detail are critical. Each disc features thin, flexible thermoplastic bristles impregnated with abrasive grain throughout the material. As the bristles wear, fresh abrasive is continuously exposed, providing consistent cutting action and long service life. Unlike conventional polishing wheels or rubber abrasives, Sunburst discs maintain surface detail and avoid flat spots or loss of definition, making them ideal for intricate components and delicate surfaces. They also run cooler with minimal dust, reducing the risk of heat damage or distortion when working with sensitive materials. These discs are part of Moleroda’s wider range of radial bristle discs for deburring, polishing and surface finishing. Available Grades These 7/8″ TC 4-Ply discs are available in multiple colour-coded grades for progressive finishing. Assortment Set (Complete Finishing System) Includes all seven grades plus mandrels: 4 × Yellow — Coarse (80 grit) – cleaning and light deburring 4 × White — Medium (120 grit) – smoothing and surface preparation 4 × Red — Standard (220 grit) – refining surfaces 4 × Blue — Fine (400 grit) – pre-polishing 4 × Pink — Fine (600 grit) – smoothing and finishing 4 × Peach — Extra-Fine (6 micron) – high polish preparation 4 × Light Green — Ultra-Fine (1 micron) – final polishing Also includes: 7 × MM503 Screw-Top Mandrels – 2.35mm (3/32″) shank Individual Grade Packs Each pack contains: 4 × discs of the selected grade 1 × MM503 Screw-Top Mandrel (2.35mm / 3/32″) Available grades: Yellow – Coarse – 80 Grit White – Medium – 120 Grit Red – Standard – 220 Grit Blue – Fine – 400 Grit Pink – Fine – 600 Grit Peach – Extra-Fine – 6 Micron Light Green – Ultra-Fine – 1 Micron Key Features Flexible radial bristle designAllows the discs to conform to curves, edges and intricate shapes. Consistent cutting performanceAbrasive grain is embedded throughout the bristles, exposing new abrasive as the disc wears. Reduced heat generationCool-running design helps protect delicate materials. No polishing compound requiredAbrasive-filled bristles produce a clean, controlled finish. Excellent for detail workIdeal for finishing areas where conventional wheels cannot reach. Suitable Materials Sunburst radial discs are suitable for: Precious and non-precious metals Stainless steel and engineering alloys Plastics and thermoplastics Acrylics and composites Wood and resin materials Typical Applications Deburring small machined components Polishing jewellery and precious metals Surface finishing mould tools Cleaning and finishing 3D printed parts Refining intricate or hard-to-reach surfaces Technical Specifications Specification Details Disc Diameter 7/8″ (22mm) Disc Construction TC Thermoplastic Bristles Ply 4-Ply Abrasive Aluminium Oxide / Pumice (grade dependent) Shank Size 2.35mm (3/32″) Recommended Speed 3,000 – 18,000 RPM Tool Compatibility Rotary tools, micromotors, pendant drills Frequently Asked Questions (FAQs) What tools can these discs be used with? These discs are designed for rotary tools with a 2.35mm (3/32″) shank, including micromotors, pendant drills, hobby rotary tools and precision polishing machines. Do I need polishing compound? No. Sunburst radial discs contain embedded abrasive, meaning compound is typically not required. What grade should I start with? For most finishing processes, start with a coarser grit for cleaning or deburring, then progress through finer grades to achieve the desired surface finish. Are these discs suitable for jewellery work? Yes. They are widely used in jewellery finishing because the flexible bristles preserve detail while producing a uniform finish.
