The Mirka 24-6MH-220 Iridium 6 in Grip 121H hook and loop sanding disc is a 6 inch abrasive disc made for finer sanding and surface prep. This is a hook and loop sanding disc designed for dust-managed finish sanding and prep work. Model Number: 24-6MH-220. If you need a disc for smoothing, blending, and getting a surface ready for the next step, the 220 grit rating puts this one in the range where control matters more than aggressive stock removal.

Mirka markets this under the Iridium line, and the available product data points to a semi-open coated abrasive vacuum disc with an aluminum oxide and ceramic abrasive mix. In practical terms, that means the disc is built to keep cutting while handling finer sanding tasks where loading and surface quality can make or break the result. On jobs where you are refining filler, sanding primer, or cleaning up a wood surface before finish, 220 grit is the kind of grit that helps you dial in the final feel without getting too aggressive.

The 6 inch format is a standard size for many sanding setups, so this Mirka sanding abrasive fits the workflow a lot of pros and serious DIY users already have in the shop. The Grip designation means hook and loop attachment, which matters because fast disc changes save time when you are moving between grits or replacing a worn disc mid-job. That sounds minor until you are doing repeated changeouts all day.

The 121-hole pattern is one of the details that actually matters on the job. More dust extraction coverage helps keep the abrasive face clearer during sanding, which can support a more even scratch pattern and reduce the amount of dust hanging around the work area. That is especially useful during finish sanding, where a cleaner surface and steadier cut usually lead to less rework.

This Mirka hook and loop sanding disc is sold in a 50-pack, which makes sense for production work, repeatable shop use, or anyone who burns through discs steadily enough that buying singles is just slowing them down. A pack size like this is better suited to users who already know where 220 grit fits in their sanding sequence and want to keep that grit on hand rather than hunt for it when they need it.

Who should buy it? Anyone running a 6 inch hook and loop sander and looking for a finer-grit vacuum sanding disc for surface prep. That includes woodworkers, body shop users, painters doing prep work, finish carpenters, and remodeling pros who need a clean sanding step before coating or assembly. If your work leans more toward fast material removal, this is not your first disc. If your work leans toward final prep and surface quality, it is right in its lane.

Mirka 24-6MH-220 Iridium 6 in Grip 121H hook and loop sanding disc for finish-focused sanding

This is the kind of sanding disc you buy when surface quality matters and you do not want dust fighting you the whole time.

• Who it's for: Pros and serious DIY users doing finish sanding, paint prep, filler sanding, or final wood surface prep with a 6 inch hook and loop sander.
• Why it stands out: The 220 grit, 121-hole vacuum layout, and 50-pack format make it a practical choice for clean, repeatable sanding work.
• Worth knowing: This is a finer-grit disc, so think prep and refinement, not heavy stock removal. Also make sure your sander setup matches the 6 inch hook and loop format and dust-hole pattern you need.

• What type of product is this? It is a 6 inch hook and loop vacuum sanding disc from Mirka's Iridium line.
• What grit is it? This disc is 220 grit, which is generally used for finer sanding and surface preparation.
• How many holes does the disc have? It uses a 121-hole pattern for dust extraction support.
• Where is it made? Source data lists Finland as the country of origin.