Home › Blog › Buying Guide › Industrial Insights: How to Spot Quality in Pre-Owned, Used, Secondhand, Surplus CNC Equipment Before Purchase Agie Charmilles Cut 20P Wire EDM made in Switzerland When evaluating a pre-owned / surplus Wire EDM machine like the Agie Charmilles CUT 20P (Swiss-made EDM), you must go well beyond just “does it power up.” Wire EDM is a precision electro-erosion process, and small degradations, wear, or undocumented modifications can drastically affect accuracy, surface finish, and long-term reliability....