Serious Grit - 3" x 5" (80mm x 133mm) 14-Hole 180 Grit Sanding Sheets – Fits Festool RTS 400 & Mirka Deos 353 – 50 Pack

Smarter sanding with Serious Grit

Meet Serious Grit 3" x 5" 14-Hole 180 Grit sanding sheets, designed to fit popular compact sanders such as Festool RTS 400 and Mirka Deos 353. The 14-hole pattern works with dust extraction to help keep your workspace cleaner while you prep wood, metal, drywall, epoxy, or painted surfaces for finishing.

Durable, film-backed construction

These sheets use a heavy-duty polyester film between the aluminum oxide abrasive and the hook-and-loop backing. This yields a tougher disc with steadier heat dissipation and a finer overall finish than traditional paper or mesh abrasives.

• Rugged film backing resists tearing around corners and edges during extended use.
• Premium coating aids dust shedding, helping the disc stay effective longer in dusty tasks.

Cleaner sanding with less downtime

The anti-clog zinc stearate coating works with dust extractors to minimize clogging, so more of the abrasive surface stays active where you work. The result can be a more consistent cut and smoother finish across a range of materials.

• Less clogging means sustained cutting power and a steadier surface feel.
• Flat, stable performance supports an even, swirl-free finish.

Practical outcomes you might notice

In real-world projects, you may find easier material prep, a flatter finish, and reduced edge fraying when working around curves. The 50-pack box helps keep a ready supply for ongoing work, reducing downtime between sessions.