Mirka 5-in. 120 Grit Adhesive Sanding Disc, No-Hole, 1-Pack (23-388-120)

The Mirka 23-388-120 5-Inch 120 Grit No-Hole Adhesive Sanding Discs are adhesive-backed sanding discs built for surface preparation, material removal, and finish sanding steps that call for a medium grit cut. This is a sanding disc designed for general sanding and prep work on compatible power sanding equipment. Model Number: 23-388-120.

What matters here is the balance between cut speed and usable life. The 120 grit aluminum oxide abrasive is aggressive enough for everyday sanding tasks, but still controlled enough for smoothing and prep before the next finishing step. If you are stripping down a surface, leveling filler, or refining a workpiece before finer grit passes, this grit range is right in that practical middle ground most shops and job sites use constantly.

Mirka builds this disc with a sharp aluminum oxide grain, resin bonding, and a flexible latex backing. In plain terms, that means the abrasive keeps working, the bond helps the grain stay put, and the backing has enough give to follow curves or uneven surfaces without turning flimsy. That combination is a big deal on real work because cheap discs often fail one of those three tests: they dull too fast, shed grit, or crack when the surface is not perfectly flat.

The open-coat construction is another feature worth paying attention to. It helps the Mirka sanding disc resist clogging and loading, which is one of the main reasons sanding slows down and finish quality drops. When the abrasive face stays cleaner, you get a more even scratch pattern and more useful work from each disc before it needs to be replaced. That is especially helpful when sanding materials that tend to pack up paper quickly.

This is a no-hole adhesive sanding disc, so it is meant for applications and machines where that format is the right match. The adhesive backing is there for secure attachment, and the no-hole layout makes sense when dust extraction through the disc is not part of the setup. Based on the available compatibility data, it is listed for use with an angle grinder, so buyers should confirm their backing pad and machine setup match this 5-inch adhesive disc format before ordering.

On the job, this product makes the most sense for painters, refinishers, metalworkers, fabricators, body shop users, and serious DIYers who go through abrasive regularly and want something that cuts cleanly without loading up right away. If you need a 5-inch adhesive sanding disc with aluminum oxide grain, medium 120 grit performance, and a backing that can handle real use, this Mirka disc is aimed at exactly that kind of work.

Mirka 23-388-120 5-Inch 120 Grit No-Hole Adhesive Sanding Discs get the basics right

This is the kind of abrasive that makes sense when you want dependable cut, decent life, and less time fighting clogged paper.

• Who it’s for: Pros and serious DIY users doing prep, smoothing, or general sanding with a compatible 5-inch adhesive-disc setup.
• Why it stands out: Aluminum oxide grain, resin bonding, and flexible latex backing give it a good mix of cut speed, durability, and flexibility.
• Worth knowing: It is a no-hole adhesive disc, so make sure that matches your backing pad and dust collection setup before you buy.

• What grit is this sanding disc? It is a 120 grit sanding disc, which is commonly used for medium sanding, surface prep, and refinement before moving to finer grits.
• What abrasive material does it use? It uses aluminum oxide abrasive.
• Is this a dust-extraction disc? No. This is a no-hole sanding disc.
• How does it attach to the tool? It uses an adhesive backing.
• What tool is it listed as compatible with? The available product data lists angle grinder compatibility.