Dual Action Sanders Explained: Best Picks for Wood and Auto Body
The short answer Choose an electric random-orbit sander for general woodworking, a compact 3 mm-orbit dual-action (DA) sander for fine finishing, or a 5–6 mm-orbit pneumatic DA sander for fast, frequent sanding if you already have a compressor that can supply its airflow demand. “DA” describes a sanding action, not a single type of tool:…