Home › Blog › Buying Guide › Avoid Costly Mistakes: Professional Tips for Purchasing a Pre-Owned, Surplus, Second-Hand, Used CHETO PWN 3000 CNC Deep Hole Drilling with Milling made in Portugal Below is a structured “due diligence checklist” and set of professional tips targeted to buying pre-owned / surplus / used machines like the CHETO PWN / CHETO deep–hole drilling + milling systems (Portugal-built)....