Home › Blog › Buying Guide › What Industry Experts Recommend Before Purchasing a Pre-Owned, Second-Hand, Surplus, Used Knuth RSMB500 Grinding Machine made in Germany If you’re evaluating a used / surplus Knuth RSMB500 (or equivalent cylindrical / surface grinding machine made by Knuth, Germany / Europe), here’s a deep, expert-level checklist and recommendation set that experienced machine tool buyers, refurbishers, and precision shops typically rely on....