Product information:
-Voltage: 3.7V
-Power: 10W
-No-load Speed: 5000-15000 rpm
-Clamping Range: 0.5-3.2MM five chucks can be replaced by themselves
-Charging Tip: Charging indicator No. 1 red light is on until the red light of No. 1 turns green, indicating that it is fully charged, the battery runs out of red light and the product is equipped with a USB charging cable.

Contents in Box:
-1 x Mini electric grinding pen
-1 x Gear piece
-1 x Oil stone
-2 x Copper wire brush
-3 x Drill
-5 x Chucks
-5 x Double mesh cutting piece
-6 x Link pole
-9 x Wheel grinding head
-10 x Wool grinding head
-12 x Sandpaper ring
-18 x Resin cutting sheet
-23 x Sandpaper
-30 x Polishing paste
-34 x Diamond grinding needle

More information about product:
-Adjustable speed grinding machine: 3 speeds, 5000rpm, 10000rpm, 15000rpm for you to finish polishing, cleaning, engraving or lightweight plastic housing projects.
-105PC electric grinder set accessories and 30PCS diamond grinding head: Widely be used in Engraving, Carving, Sanding, Polishing Nail Polishing, Etching, Routing, Grinding, Drilling, Cutting etc.
-Ergonomic Grip: Light and compact pen-like design provides comfortable use for precision engraving performance from fine lines to deep grooves.
-USB charging: Micro USB Connector for Convenient Charge Compatible with charger of iPhone and Android, which enables you to charge the mini rotary tool at any time, Charging 2 hour for continuous work 90 minutes, 3.7 V rechargeable lithium battery.