The Mirka 23-314-120 5-Inch P120 PSA Sanding Disc Roll is a 5-inch pressure-sensitive adhesive sanding disc roll built for general sanding and finishing work. This is a sanding disc designed for surface preparation, smoothing, and light stock removal on wood, metal, and other common sanding surfaces. Model Number: 23-314-120. If you want a dependable medium grit for day-to-day shop or jobsite sanding, this one lands right in the useful middle.

The main selling point here is balance. A 120-grit abrasive is fine enough to move toward finish work, but still has enough bite for cleanup and prep between rough sanding and final pass work. That makes it a good choice when you're blending surfaces, knocking down minor imperfections, or getting material ready for the next coat or step.

Mirka uses aluminum oxide abrasive on this disc roll, which is a proven choice for general-purpose sanding because it cuts consistently across a range of materials. According to the available product data, this abrasive is suited for wood, metal, and other common sanding surfaces, so it is not boxed into just one trade or one material type.

What separates this Mirka Gold abrasive from bargain paper is the anti-loading design. The semi-open coating and special stearate layer are there for a reason: they help limit clogging and buildup while sanding at higher speed. In real use, that matters because loaded discs stop cutting cleanly, run hotter, and waste time. Anything that helps the abrasive stay cleaner helps you keep working instead of swapping discs early.

The 5-inch size is a common working format, which makes this a practical option for users who already run 5-inch sanding setups and want a straightforward PSA disc. PSA means the back is pressure-sensitive adhesive, so the disc is intended for stick-on style attachment rather than hook and loop. That matters when you're buying replacements, because the attachment style has to match your pad.

This product is sold as a pack of 100 discs in roll form, which makes sense for shops and frequent users who go through abrasives steadily. Instead of buying a few discs at a time, you get job-ready quantity for production sanding, refinishing, and repeated prep work.

Who should buy it? This is a strong fit for woodworking, metalworking, refinishing, and general shop use where 120 grit gets used regularly. If you already use PSA-backed 5-inch discs and want a trusted Mirka abrasive that is built to sand cleanly and hold up during higher-speed work, this is the kind of consumable that earns its keep pretty quickly.

Mirka 23-314-120 5-Inch P120 PSA Sanding Disc Roll Gets the Everyday Work Done

This is the kind of abrasive you keep around because 120 grit gets used constantly and Mirka's anti-loading design helps it stay useful longer.

• Who it's for: Woodworkers, refinishers, metalworkers, and serious DIY users running 5-inch PSA sanding setups.
• Why it stands out: Mirka Gold abrasive, aluminum oxide grain, and a semi-open coat with stearate treatment aimed at reducing clogging.
• Worth knowing: This is a PSA stick-on disc, not a hook-and-loop disc, so pad compatibility matters before you buy.

• What grit is this sanding disc? It is 120 grit, which is a medium grit suited for general sanding, smoothing, and prep work.
• What size are the discs? Each disc is 5 inches in diameter.
• What materials is it intended to sand? The available product data lists wood, metal, and other common sanding surfaces.
• What type of abrasive is used? It uses aluminum oxide abrasive with a semi-open coat construction.