Oscillating Multi-Tools

OPM states how many oscillations the tool makes per minute. Variable speed helps match the tool to cutting, sanding, or scraping. Compare the manufacturer-published minimum/maximum OPM range and control method; do not treat OPM as the same measurement as rotational RPM.

Oscillation angle describes the side-to-side travel of the accessory. A wider angle can produce more aggressive material removal, while a smaller movement may offer more control in some tasks. Check whether the manufacturer specifies a total angle or a left/right value.

Check the tool interface—Starlock/StarlockPlus, a manufacturer-specific mount, or compatibility through an adaptor—and do not assume visually similar accessories are interchangeable. See how to check tool accessory compatibility.

A cutting blade, sanding pad, scraper, or grout accessory must match both the material and the operation. See how to choose a tool accessory for the workpiece material and how to choose a tool accessory for the work method and task.

Consider input power together with the OPM range, accessory, and workload. Depending on the model, useful controls can include soft start, constant speed under load, or other electronic features. General guidance: how to choose tool power (W).

A tool-less quick-change system can reduce setup time, while a depth/height guide or stop can improve repeatability when the specific model supports the relevant accessory or interface.

Vibration and grip geometry matter during extended use. Compare tool weight, grip size/shape, and manufacturer-published vibration values for the relevant operation. See tool ergonomics, weight, and safety systems.

For sanding or material-removal work, check whether a compatible dust-extraction attachment is available for the system. Use only manufacturer-approved accessories, disconnect the tool before accessory changes, and follow essential power tool safety rules.