3M 4-Inch Black Diamond Polishing Disc

3M 4-Inch Black Diamond Polishing Disc: Redefine Polishing Excellence for Tough & Delicate Surfaces Alike​
At the heart of this disc lies 3M’s specially formulated black diamond abrasive grains—selected for their exceptional hardness, sharpness, and resistance to breakdown. Unlike standard polishing discs that dull after a few uses, 3M’s diamond grains retain their cutting power even when polishing dense, hard surfaces (like granite, quartz, or hardened metal). This translates to:​
Mirror-like finishes: The diamond grains refine surfaces to a smooth, reflective shine, eliminating dullness or unevenness.​
Longer service life: Up to 2-3 times more durable than non-diamond polishing discs, reducing replacement frequency and project costs.​
Consistent performance: No “drop-off” in polishing quality mid-project—each use delivers the same high standard as the first.​

4-Inch Size: Precision for Small & Detailed Surfaces​
The compact 4-inch diameter is designed for maneuverability, making it ideal for polishing areas where larger discs can’t reach. It fits most standard angle grinders, polishers, and handheld polishing tools, and excels at:​
Detailed work: Polishing edges of stone countertops, curves on automotive trim, or intricate metal fixtures.​
Small surfaces: Refinishing jewelry, ceramic tiles, or small woodworking projects (when paired with the right grit).​
Spot touch-ups: Fixing scratches or dull spots on existing polished surfaces (e.g., marble floors, stainless steel appliances) without reworking the entire area.

item	value
type	Abrasive Disc
Shape	Round
place of origin	China
size	100mm
Hardness	75hrc
Thickness	0.5mm
warranty	3 years
customized support	OEM
brand name	3M
model number	100mm
Diameter	100mm
Packing material	Paper box
applied machine	Angle grinder

From Power Tools to Pneumatic Tool, and from Ceramic Fibre Oilstone to Grinding Wheel and Cutting And Grinding Disc, the complete set of tools empowers efficient processing!