Technical data:

Object Type: Electric Engraving Pen
Material: metal plastic.
Adjust to the grinding head diameter: approx. 2.35 mm / 0.1 inches.
Drill chuck depth: approx. 25 mm / 1.0 inches.
Speed: 5000,10000,18000 third level.
Effect: 8 W.
Usage time: the third stage can last more than 1 hour without load. If you need to use it for a long time, you can use it while charging
Battery voltage: 3.6 V.
Battery type: lithium battery (included).
Battery capacity: 300 mAh.
Charge: 80% full in 30 minutes, full in 60 minutes

Package list:
1 x electric engraving pen.
1 x hex key.
1 x charging cable.
30 x sanding needles.
1 x storage box for sanding needle.
2 x drill cuts.
6 x discs.
2 x disc crankshaft.
2 x metal slip heads.
16 x templates.
1 x user manual.

Note:
Supplied with built-in battery
1. The electric grinding performance is low and is suitable for small engraving and grinding.
2. Do not place the electric grinder in a place with high temperatures above 40 degrees