Finishing & Protection

Random Orbital Sander

Removes material quickly without leaving swirl marks, provided you let the machine do the work.

Finish stage

Specification

Disc	125 mm, hook-and-loop
Orbit	2.5 mm random orbit
Speed	4,000–12,000 opm, variable
Dust	Integrated canister plus 35 mm port
Power	350 W
Weight	1.5 kg

Power tool — read before useWear eye protection, hearing protection and a dust mask. Connect a vacuum — fine sanding dust is the main respiratory hazard in a home shop.

What it is for

Removes material quickly without leaving swirl marks, provided you let the machine do the work. This guide covers what the tool does, the specification points that actually change your results, and how to use it without damaging the work or yourself.

Where it fits in the build

This is a finish stage tool in the Finishing & Protection category. Smooth, colour and seal the completed piece.

Finish Finishing & Protection

Using it well

Let the sander rest flat and move it slowly — pressing down makes it cut unevenly and wears the disc out.
Step through the grits: 80 to remove, 120 to refine, 180 for finish-ready, 220 at most before stain.
Vacuum the surface between grits so stray coarse grains do not scratch the next pass.

Compatible materials

Materials this tool handles without compromise. Where a material is not listed, check that the tool is rated for it before committing to a cut.

Hardwood
Softwood
Plywood
MDF

Reference sample in 3D

The model above is a real pine reference block rendered in the browser. It is simulated from a height field rather than photographed, so you can rotate it to see how light behaves across the grain, the end grain and the edges. Drag it, or use the view buttons to look at the top face or the end grain in isolation.

Why this matters

Reading how light falls across a board is the fastest way to judge whether a surface is flat. That is the same judgement you make with a hand plane or a sander, and it is much easier to see on a rotating model than on a static photo.

Educational content only. Settings, capacities and safety guidance here are general starting points, not instructions for your specific tool, material or situation. Always follow your tool manufacturer's manual and any material datasheet, and check your own measurements before cutting.

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