Home › Blog › Buying Guide › From Inspection to Installation: What to Verify Before Buying a Pre-Owned, Used, Secondhand, Surplus MICROTURN Challenger BNC 1840 CNC Cycle Controled 1 Meters made in Taiwan Below is a detailed checklist—from inspection through to installation—tailored for a used or surplus MICROCUT Challenger BNC‑1840 (cycle-controlled CNC lathe) made in Taiwan (or via Taiwan OEM)....