Quick Summary
NuoDunco 115mm flap discs are a practical choice for angle grinder sanding, grinding and polishing when you want a more efficient disc change and a steadier feel in use.
What This Product Is Used For
These NuoDunco flap discs are made for use on an angle grinder for sanding, grinding and polishing. Compared with a basic grinding disc, the flap disc format is better suited to light rust removal, deburring, weld grinding, blending and finishing. The Type 29 bevel design also makes edge and corner work more convenient, which is why users choose it over simpler flat options.
Who This Product Is Best Suited To
This product is best suited to people who want a disc that can handle everyday grinding tasks, work on welded seams, and support surface sanding on contoured or flat areas without feeling overly complicated to use.
Key Benefits at a Glance
• 20 pack gives you multiple discs ready for ongoing work
• 115mm size suits angle grinder use for common sanding and grinding jobs
• 40/60/80/120 grit options help match the disc to the task
• Zirconia material is described as lasting longer than standard aluminium oxide abrasive material
• Fibreglass backing plate is designed to absorb vibrations for a more stable feel
• Type 29 bevel shape makes edge and corner work easier
• Suitable for light rust removal, deburring, weld grinding, blending and finishing
• Maximum speed of 13,800 RPM supports fast grinding
Pros and Cons
Pros
• Useful for a range of sanding, grinding and polishing tasks
• Stable feel in use thanks to the fibreglass backing plate
• Type 29 shape makes edge and corner grinding more convenient
• Multiple grit options give more flexibility across jobs
Cons
• Not suitable for concrete or stone grinding
• Designed for angle grinder use, so it is not a universal disc for every tool
Real World Performance and Day to Day Use
In day to day use, these NuoDunco 115mm flap discs are built for angle grinder work on metal, alloyed and unalloyed steels, composites, plastics and wood. The zirconia abrasive material and fibreglass backing plate are both aimed at making grinding feel more efficient and stable, while the 13,800 RPM maximum speed supports fast work. Choose this if you want a simple, reliable way to handle surface sanding and weld work. Skip this if you need a disc for concrete or stone.
Why We Like This Product
The YPC Team likes this because it combines a useful 20 pack with a Type 29 shape that helps with edge and corner work. It helps avoid the common mistake of choosing a disc that feels awkward on welded seams, and it reduces the regret of buying a disc that is not suited to the surface you need to work on.
Comparisons With Similar Systems
Compared with standard grinding discs
Better when you want sanding, blending and finishing as well as grinding
Alternative better when you only need very basic grinding
Compared with flat flap discs
Better when edge and corner work matters more
Alternative better when you mainly work on broad flat areas
Alternatives Worth Considering
Other alternatives worth considering include standard grinding discs, flat flap discs and discs made for different grit requirements.
Tips for Getting the Best Performance
Use the grit that matches the task, starting coarser for heavier work and moving finer for finishing. Keep the disc within the stated 13,800 RPM maximum speed. Use it for the intended surfaces and avoid concrete or stone grinding.
Full Technical Specification
Brand
NuoDunco
Product Type
Flap discs
Pack Size
20 pack
Disc Size
115mm
Grits
40 grit
60 grit
80 grit
120 grit
Type
29 type
Backing Plate
Fibreglass backing plate
Maximum Speed
13,800 RPM
Use
Sanding
Grinding
Polishing
Light rust removal
Deburring
Weld grinding
Blending
Finishing
Suitable Materials
Metals
Alloyed steels
Unalloyed steels
Composites
Plastics
Wood
Not Suitable For
Concrete
Stone
Buyer’s Guide
Buy this if you want easier, safer and simpler angle grinder discs for sanding, grinding and finishing with a choice of grits.
Do not buy this if you need stronger suitability for concrete or stone work.
Frequently Asked Questions
What is the NuoDunco 20 Pack Flap Discs set used for?
NuoDunco flap discs are used for sanding, grinding and polishing on an angle grinder, including light rust removal, deburring, weld grinding, blending and finishing.
What size are these flap discs?
NuoDunco flap discs are 115mm discs for angle grinder use.
What grit options are included?
NuoDunco flap discs are supplied in 40, 60, 80 and 120 grit options.
What does Type 29 mean for this product?
NuoDunco Type 29 flap discs have a bevel design that makes edge and corner grinding more convenient.
What materials can these discs be used on?
NuoDunco flap discs are suitable for metals, alloyed and unalloyed steels, composites, plastics and wood.
Can these flap discs be used on concrete or stone?
NuoDunco flap discs are not for concrete or stone grinding.
What helps with a steadier feel during use?
NuoDunco flap discs use a fibreglass backing plate that effectively absorbs vibrations.
What maximum speed should be followed?
NuoDunco flap discs have a maximum speed of 13,800 RPM.
Are these flap discs suitable for welded seams?
NuoDunco flap discs are suitable for working on welded seams at a working angle of 5 to 15 degrees.











