General description This very complete engraving kit will allow you to engrave, personalize, and decorate most surfaces in minutes, including metal, plastic, glass, ceramic, wood, leather, diamond, stone, and more. The lightweight and compact engraving pen offers additional comfort, ensuring precise engraving from fine lines to deeper grooves. The ergonomic grip provides constant control of the tool, making it easy to engrave your items without the need for an engraving specialist. Technical specifications AC Input: 100V~240V, 50~60Hz DC Output: 9V/1000mA RPM (Revolutions Per Minute): 3,000 to 20,000 Collet Type: 3/32" (2.4mm) Package Contents: 1 x Engraving Pen, 1 x Carbide Scriber, 30 x Diamond Bits (2.4mm Shank), 2 x Diamond Drill Bits, 5 x Grinding Heads, 6 x Sanding Belt Sets, 1 x Grinding Mandrel, 20 x Sandpaper Pads, 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 Number and Letter Patterns, 4 Graphic