TBK 938 Smartphone Screen Scratch Repair Polishing Machine. TBK 938 4-slot automatic screen 3D polishing machine for removing scratches on mobile phone screen, mobile phone back cover glass and smart watch screen. TBK 938 Smart Polisher Mobile Phone Screen Scratch Removal Tool. Parameter: 1. Product Name: TBK938 Intelligent Polishing Machine 2. Voltage: AC 220V /110V 3. Power: 1000W 4. Product size: 66*66*83CM 5. Package size : 78*75.5*102CM 6. Net Weight : 117KG 7. packaging 140KG Features: 1. Wtih Built-in Pump and abrasive Liquid Pipe 2. Water-Mill Injects Water and Polishes 3. Intelligent Air Pressure Steplessly Adjusts Downward Pressure 4. Frequency Conversion Stepless Speed Adjustment 5. Built with Liquid Circulation System 6. Build with the Smartphone-Fixing-Mould (works during polishing). Package list: 1x TBK938 machine 2x Double mode aluminum plate(total 4 slots) 1x Sanding blanker 1x Waterproof glue 1x Grinding powder 6x Moulds 1x Hexagon wrench