General description This very complete engraving kit will allow you to engrave, personalize, and decorate most surfaces in just a few minutes, including metal, plastic, glass, ceramic, wood, leather, diamond, stone, and more. Technical specifications AC Input: 100V~240V, 50~60Hz DC Output: 9V/1000mA RPM (Revolutions Per Minute): 3000 to 20000 Collet Type: 3/32" 2.4mm Compatibility and accessories 1 x Engraving Pen 1 x Carbide Scribe 30 Diamond Bits (2.4mm Shank 3/32") 2 x Diamond Bits 5 x Grinding Heads 6 x Sanding Belt Sets 1 x Grinding Mandrel 20 x Sandpaper Trays 10 x Resin Cutting Discs 3 x Small Cutting Saw Blades with 1 Arbor 3 x Small Diamond Blades with 1 Arbor 24 Patterns (4 patterns of numbers and letters + 4 graphics patterns + 8 floral patterns + 8 animal models) 1 Power Adapter Usage Engraving, sanding, polishing (nail polishing), routing, grinding, sharpening, drilling, and more. Can be used for nail polishing, craft and DIY activities, and to create personalized