WIDE APPLICATION: Mini rotary tool can be used to cut, grind, grind, trim, polish, engrave, grind, drill or smooth parts for any home improvement or craft work. So works well on metal, metal, wood, plastic, modeling clay, jewelry, aluminum. The multi-function tool grinder can also be used to care for pet claws. Do not use too much hard material. ADJUSTABLE ROTATION SPEED: One button to change the rotation speed between 3,000 and 20,000 rpm. allows flexible adjustment and adjustment of the speed according to the content of the work and the type of material used. VERSATILE ROTARY TOOL SET: With 78 accessories such as sanding tape, drill bit, sanding discs, Diamond bits for sanding, grinding, sharpening, polishing, engraving, drilling and cleaning, meet your different DIY demands. More graphic stencils give you more ways to personalize your valuables. MANAGEABLE AND COMFORTABLE HANDLE: Rubber coated handles provide superior comfort and control for better control. Like a pen held for precision work, held like a hammer for tough work, let you work better and less tired. EXTENDED ACCESSORIES: Extended accessories come in a small transparent plastic box for keep things simple. Whats more, all the accessories are easy to attach and change. This versatile mini rotary tool DIY drill with 78 accessories is simply amazing. It has a wide variety of applications at home or on the job such as drill bits, carvings, engravings, grinding wheels, grinding, sanding, sharpening and much more. Specifications of the engraver pen: AC input: 100V~240V, 50~60Hz DC output: 9V/1000mA RPM (revolutions per minute): rotational speed continues from 3,000 to 20,000 Collet size: 3/32 2.4mm What you get: 1 x engraving pen 1 x carbide scribe 10 x diamond bits 11 x flat diamond bits 5 x bits round diamonds 4 diamonds in the shape of a jujube 6 x polishing tips 6 x sanding bands 2 x polishing bits diamond drilling 3 x small stainless steel saw blades with 1 connecting rod 3 x small diamond blades with 1 connecting rod 24 stencils (8 number stencils and letters + 8 graphic sheets + 8 flower stencils) 1 x power adapter 1 x user manual ion