WIDE APPLICATIONMini 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, jewellery, aluminium. The multi-function tool grinder can also be used to care for pet claws. Do not use too many hard materials.ADJUSTABLE ROTATION SPEEDOne 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 KITWith 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 stencilsgraphics give you more ways to customize your valuables.MANAGEABLE AND COMFORTABLE HANDLERubber coated handles provide superior comfort and control for better control. Like a pen held for precision work, held like a hammer for tough work, lets youwork better and less tired.EXTENDED ACCESSORIESExtended accessories come in a small clear plastic box to keep things simple. In addition, all accessories are easy to attach and change.This multi-purpose DIY rotary tool mini drill with 78 accessories is simply amazing. It has a wide variety of applications at home or at work such as drill bits, carvings, engravings, grinding wheels, grinding, sanding, sharpening and many more.more.Engraver pen specifications:AC input: 100V~240V, 50~60HzDC output: 9V / 1000mARPM (revolutions per minute): continuous rotation speed from 3,000 to 20,000Collet Size: 3/32"2.4mmWhat you get:1 x engraving pen1 x carbide scribe10 x diamond bits11 x flat diamond bits5 x round diamond bits4 jujube-shaped diamonds6 x polishing tips6 x sanding bands2 x diamond drill bits3 x small stainless steel saw blades with 1 connecting rod3 x small diamond blades with 1 connecting rod24 stencils (8 number and letter stencils + 8 graphic sheets + 8 flower stencils)1 x power adapter1x user manual