Mirka Autonet 5-in. 120 Grit Hook and Loop Sanding Discs, 50-Pack (AE23205012)

Mirka AE23205012 5″ Autonet 120 Grit Mesh Grip (Hook and Loop) Sanding Discs – 50 Discs per Box is a 5-inch mesh sanding disc made for surface sanding and dust-controlled finishing work. This is a sanding disc designed for automotive refinishing and other sanding applications where clean extraction, steady cut, and consistent surface quality matter. Model Number: AE23205012.

What sets this Mirka abrasive apart is the Autonet mesh construction. Instead of relying on a standard paper disc with a fixed hole pattern, the abrasive uses a net-style backing that allows dust to move through the full surface. In practical terms, that means better dust extraction, less clogging, and a disc that stays usable longer during repeated sanding passes. If you already run dust extraction on your sanding setup, this is the kind of abrasive that makes that system work harder for you.

The 120 grit rating gives you a more controlled sanding step for refining surfaces without jumping too coarse. For automotive work, that matters when you are trying to keep the scratch pattern even and avoid unnecessary rework. The aluminum oxide abrasive also gives this disc a familiar balance of cut speed and durability, making it a solid fit for routine prep work instead of a one-job specialty disc.

The hook and loop grip backing is another real-world advantage. Disc changes are quick, which helps when you are moving through several grit stages or swapping out loaded abrasives during a longer job. A 5-inch format is also one of the most common sizes in finishing and prep work, so it fits into established sanding workflows without forcing you into oddball accessories.

Mirka developed the Autonet line around the needs of the automotive refinishing trade, and that shows in how the disc handles dust. Cleaner extraction helps reduce pilling and surface contamination, and it also gives you better visual control while sanding because the surface stays more visible. That is useful when you are trying to avoid oversanding edges or chasing a uniform finish across filler, primer, or painted surfaces.

This product is best suited for users who care about finish quality and dust control more than just burning through the cheapest disc possible. Body shops, detail-oriented painters, refinishers, and serious DIY users doing prep work will get the most out of it. If your sanding process depends on keeping the abrasive cutting clean and the work area under control, this Mirka mesh sanding disc is the right kind of upgrade.

Less Dust, Less Loading, Better Control

The Mirka AE23205012 5″ Autonet 120 Grit Mesh Grip (Hook and Loop) Sanding Discs is the kind of abrasive that makes sense when finish quality and cleanup both matter.

• Who it’s for: Automotive refinishers, body shops, and detail-focused users who want cleaner sanding with better surface visibility.
• Why it stands out: The mesh design helps pull dust through the whole disc, which cuts down on clogging and keeps the abrasive working longer than typical paper discs.
• Worth knowing: You get 50 discs per box, but this disc really earns its keep when used on a compatible hook and loop pad with dust extraction.

• What kind of abrasive is used on this disc? It uses aluminum oxide abrasive.
• What grit is this Mirka sanding disc? This model is 120 grit and is listed as extra fine.
• How does this differ from a standard paper sanding disc? It uses a mesh-style Autonet construction that allows dust extraction across the abrasive surface instead of only through fixed holes.
• What tool is it listed as compatible with? The available product data lists compatibility with an angle grinder.