Dropped some rusty parts in vinegar-filled bags, sealed them, and placed them in the ultrasonic cleaner for two 30-minute runs — then let them sit a day. The result? Super clean metal, most of the rust converted to black oxide. Still slow-acting, but vinegar’s gentle acidity makes it safe and effective. I’ll let these sit another day or two and see if it gets the rest. Have you tried this method or used something faster-acting? #Metalworking #RustRemoval #WorkshopProjects #EngineeringExperiment

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