Bicolor Metal Engraving Machine, Electrical Engraving Machine, Electrical Discharge Pen SG-1, Molds and Tools, Stainless Steel, Aluminum, Iron Country of Origin: Mainland China Renovation and Construction Scope: Installation Work Model: SG Item Number: 26‑8‑0196‑50‑10‑12 (Shipping) Province: Fujian Color Categories: Electric Engraving Machine (Complete Set), Accessories: Connection Cable, Accessories: Pen (sold separately, without cable), Accessories: Pen Tips (approx. 20 pieces) Product Name: SG‑1 Two-Color Metal Electro-Engraving Machine Input Voltage: 220V 50Hz Power Consumption: 50W Dimensions: 250×180×50mm Net Weight: 2.7KG Principle: Utilizes the electric spark principle to engrave black or white markings on metal surfaces. It can easily engrave ultra-hard materials without affecting the flatness of the workpiece.