The Mirka Basecut 5 in Grip P320 Sanding Disc is a paper sanding disc made for fine sanding and surface preparation. This is a sanding disc designed for finish sanding on compatible grip-style random orbit sanders and similar sanding setups. Model Number: 20-612-320. If you need an economical abrasive for smoothing surfaces before the next step in the job, this is the kind of disc that earns its place in the shop.

What matters here is the balance between cut quality and cost. The Basecut line is positioned as an economical, high-efficiency choice for paper sanding, and the supplied product data calls out a high initial aggressive cut along with a long working lifespan. In practical terms, that means you get a disc that starts working quickly and stays useful long enough to matter when you are running through repetitive sanding tasks.

The P320 grit puts this Mirka sanding disc firmly in the finer finishing range. That makes it a smart pick when the goal is refining a surface rather than heavy stock removal. It is well suited to smoothing scratch patterns from earlier sanding steps, prepping surfaces between coats, or getting material ready for paint and finish work where a cleaner surface matters.

The 5 inch format is one of the most common disc sizes in the shop, which makes this a practical choice for users already set up with 5 inch grip sanders. The grip backing also keeps disc changes simple. When you are moving between worn discs on trim, cabinet parts, panels, or general surface prep, fast attachment and removal saves more time than most people think.

This Mirka abrasive is a good fit for users who need steady performance without paying for a specialty disc when the application does not call for it. For production sanding, general woodworking prep, refinish work, and day-to-day shop use, that straightforward value is the point. You are not buying a gimmick here. You are buying a common-size finishing disc from a brand that knows abrasives.

Who should buy it? Painters, woodworkers, refinishers, remodelers, and serious DIY users who need fine-grit hook and loop sanding discs in box quantity. If your work includes final smoothing, between-coat sanding, or surface prep before finish, the Mirka Basecut 5 in Grip P320 Sanding Disc is a sensible stock item.

Stock-Up Fine Grit That Covers Everyday Finish Work

The Mirka Basecut 5 in Grip P320 Sanding Disc is a smart buy when you need a reliable fine-grit disc in a common size without overpaying for specialty abrasives.

• Who it's for: Shops and serious DIY users doing finish sanding, between-coat sanding, or final prep before paint and finish.
• Why it stands out: You get Mirka abrasive know-how, a common 5 inch grip format, and a box of 50 discs that makes sense for regular use.
• Worth knowing: This is a finer P320 disc, so think smoothing and prep, not heavy material removal.

• What kind of sander does this disc fit? It is made for tools or backing pads that use 5 inch grip-style sanding discs.
• What is P320 grit best used for? P320 is generally used for finer sanding, final surface prep, and refining a surface before finishing steps.
• How many discs come in the package? This product is sold as a box of 50 sanding discs.
• Where is it made? The source data lists Finland as the country of origin.