The Mirka Iridium 24-3MH-120 Sanding Disc is a 3 inch abrasive disc built for surface preparation and finish sanding. This is a sanding disc designed for controlled material removal and cleaner sanding with dust extraction. Model Number: 24-3MH-120. If you need a compact abrasive for detail sanding, spot repair, or smaller work areas, this disc size makes sense.

What matters here is the combination of a 120 grit abrasive, a semi-open coated design, and a 20-hole pattern. In real use, that gives you a disc that can handle general sanding work while helping move dust away from the work surface. That usually means a more consistent cut and less time fighting loaded abrasive.

The 3 inch format is a good fit when a larger sanding disc feels clumsy or when you are working smaller panels, edges, and repair areas. It is also a practical choice for users who want better control in tighter spaces without giving up the convenience of disc-based sanding.

This Mirka sanding disc is sold in a 50-piece pack, which matters for anyone doing repeat prep work. You have enough discs on hand for production sanding, shop use, or regular refinishing work without burning through a small retail pack too fast.

For buyers comparing abrasives, the key points are straightforward: this is a Mirka Iridium sanding disc with a 3 inch diameter, 20-hole dust extraction pattern, and 120 grit rating. That makes it relevant for woodworkers, finishers, body shop users, and serious DIY customers who want a smaller hook and loop sanding disc for prep and refinement work.

If your setup uses 3 inch hook and loop sanding discs with a matching hole pattern, this disc is aimed at exactly that kind of job. It is best for users who care about dust control, consistent sanding, and keeping the right grit on hand for everyday surface prep.

Small Disc, Practical Grit, Good Fit for Repeat Prep Work

The Mirka Iridium 24-3MH-120 Sanding Disc makes sense when you want a smaller-format abrasive that still checks the boxes on dust flow, usable grit, and pack quantity.

• Who it's for: Anyone doing detail sanding, repair work, refinishing, or prep work with a 3 inch hook and loop setup.
• Why it stands out: The 20-hole pattern, 120 grit rating, and 50-piece count give it real day-to-day usefulness instead of feeling like a one-off specialty disc.
• Worth knowing: Make sure your pad matches the 3 inch size and works with the hole pattern if dust collection matters in your setup.

• What grit is this sanding disc? It is a 120 grit sanding disc.
• What size is the disc? The disc diameter is 3 inches.
• Does it support dust extraction? Yes. It uses a 20-hole pattern intended to support dust extraction while sanding.
• How many discs come in the pack? This pack contains 50 sanding discs.