Key Features
Overview
Mirka 23-342-120 Gold 6 inch Sticky Back PSA Sanding Discs are pressure-sensitive adhesive sanding discs made for general surface sanding and prep work. This is a PSA sanding disc designed for surface sanding and finish prep. Model Number: 23-342-120. With a 6 inch diameter, 120 grit abrasive, and a 100-count roll, this pack is aimed at users who want a dependable sanding disc for repeat work without constantly stopping to reload.
The main value here is the combination of Mirka’s gold-series aluminum oxide abrasive and a practical 120 grit cut. That grit sits in a useful middle ground for many sanding steps, where you need enough bite to level a surface or clean up previous scratch patterns, but not such an aggressive cut that you leave a rough finish behind. If you do a lot of prep between heavier stock removal and final finishing, this is the kind of grit that earns its keep.
Mirka also calls out a sharp, durable aluminum oxide grain along with an anti-loading stearate treatment. In plain terms, that matters because clogged discs stop cutting well and waste your time. A disc that resists loading keeps the abrasive exposed longer, which helps maintain more consistent sanding performance and can stretch disc life on jobs where dust buildup is usually the thing that kills the disc first.
The PSA backing is another practical advantage. Sticky-back discs are straightforward to apply, hold securely to the pad, and make quick swaps easy when you’re moving through material or changing worn abrasives. For shops and serious DIY users already set up for PSA discs, that means less messing around and a cleaner, flatter fit on the sanding surface.
This Mirka sanding disc is a sensible choice for anyone running a 6 inch PSA sander or sanding pad and needing a bulk quantity of medium-grit discs. It makes the most sense for users who burn through abrasives regularly and care more about consistent cutting, predictable wear, and easy disc changes than flashy packaging. If you want a known abrasive from a brand people trust in sanding, this is a solid, work-ready option.
Fast Changes for Repetitive Sanding
If you use a PSA setup, this format keeps disc changes simple and efficient. Peel one off, stick it down, and get back to sanding without wasting time fighting hook and loop wear or mismatched pads.
- 6 inch diameter for PSA sanding applications
- 100 discs per roll for higher-volume shop use
- 120 grit works well for general prep and intermediate sanding steps
What’s in the Box
- (100) Mirka 6 inch Sticky Back PSA Sanding Discs, 120 Grit
Sanding tool and pad are not included.
Key Specifications
| Diameter | 6 in |
|---|---|
| Grit | 120 |
| Abrasive Material | Aluminum Oxide |
| Backing Type | PSA Sticky Back |
| Quantity | 100 Discs per Roll |
| Color | Gold |
Compatibility
Tool Nut’s Take
Mirka 23-342-120 Gold 6 inch Sticky Back PSA Sanding Discs are a smart bulk buy for PSA users
This is the kind of sanding supply that makes sense when you want dependable 120 grit performance, easy changes, and enough discs on hand to keep working.
- Who it’s for: Woodworkers, finish guys, body shop users, and serious DIYers already running a 6 inch PSA sanding setup.
- Why it stands out: You get Mirka aluminum oxide abrasive, anti-loading stearate, and a 100-count roll in a grit that handles a lot of day-to-day prep work.
- Worth knowing: This is a PSA sticky-back disc, so make sure your pad is built for PSA discs, not hook and loop.
Common Questions
- What grit are these sanding discs? These discs are 120 grit.
- What size are the discs? Each disc is 6 inches in diameter.
- What abrasive material is used? They use aluminum oxide abrasive.
- Are these hook and loop discs? No. They are PSA sticky-back sanding discs.
- How many discs come in the pack? This roll includes 100 discs.
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