🔧 Grind Like a Pro with SIGNI!
The SIGNI S/C Plastic Back Grinding Disc is a 4.5-inch, 36 grit disc made from durable silicon carbide, designed for efficient grinding of granite, marble, concrete, and glass. Its innovative plastic backing eliminates the need for a backup pad, while its longevity and speed make it a superior choice for professionals.
| Grit Material | Silicon Carbide |
| Product Dimensions | 4.5"L x 4.5"W |
| Brand | SIGNI |
| Compatible Devices | Angle Grinder, Bench Grinder, Die Grinder |
| Grit Type | Coarse |
| Item Thickness | 5 Millimeters |
| Grit Number | 36 |
| Construction Type | Grinding |
| Maximum Rotational Speed | 13300 RPM |
| UPC | 793513613569 |
| Manufacturer | SIGNI INDUSTRIAL (SHANGHAI)CO.,LTD |
| Item Weight | 12 ounces |
| Item model number | 793513613569 |
| Size | 4.5 inch |
| Material | 36 Grit |
| Batteries Included? | No |
| Batteries Required? | No |
A**R
Best Grinding disc
These are awesome for fiberglass, fixing an old boat, it just literally chunks it out, even use it too cut too. They last a long time
A**S
Very effective and easy to use in a die grinder! Very happy with product!
Works very well and will last long as well!
D**W
Works great to grind polyurea joint filler
We use this discs when filling control joints in warehouses with polyurea joint filler compounds. This disc is aggressive enough to remove the overfilled material, but does not leave significant scratching on the concrete. This is great to use when we are only filling joints and not grinding the entire concrete slab. It is a great option for polished concrete and coating professionals/DIY'ers.
L**O
It works
They grind very fast
M**.
Great product
These grinding discs do a great job at smoothing uneven concrete surfaces. I would buy them again
P**G
Aggressive
Very aggressive so beware
S**N
Works great
Bought this to remove bad calcium build up in a salt water pool! The disc chews right through it and will rough smooth the concrete/plaster! I’ve run it for around 8 hours on a concrete pool and it looks like it’s barely used! I’m very happy so far.
P**R
Quality poor
Very poor quality, barely used them and they were worn out
Trustpilot
2 days ago
1 month ago
