70-piece Engraving Tool Kit, Multi-function Electric Engraver Pen Diy Rotary. Specifications: 2 in 1 Rotary Button Controls ON/OFF and Speeds AC Input: 100V~240V, 50~60Hz DC Output: 9V/1000mA RPM (Revolutions Per Minute): Stepless Speed from 3,000 to 20,000 Color: Red, Black Plug Type: EU Plug : US Plug Material:Metal + Plastic Size:Collet Size: 3/32 Inch/2.4mm For Jewellery Glass Ceramic Wood Plastic With Package Contents: 1* Carving Tool 1* Crossed Pen 16* Template 30* Boxed Drill Bit 6* Polishing Head 2* Twist Drill 3* Stainless Steel Saw Blade with 1 Connecting Rod 3* Diamond Blade with 1 Link 1* Plug Only the Above Package Content, Other Products Are Not Included. Note: Light Shooting and Different Displays May Cause the Color of the Item in the Picture a Little Different from the Real Thing. The Measurement Allowed Error is +/- 1-3cm.