Mijing DM-12 Coaxial Polishing Pen with 7 Grinding Heads for phone motherboard chip grinding, board polishing, shield cover cutting and dust removal. Mijing DM-12 electric grinding pen is a basic phone fix tool for mobile phone repair shops or other electronic circuit board repair shops.

Features:
1. With seven interchangeable grinding heads, it is suitable for IC chip grinding, board polishing and cutting shield cover.
2. Five-speed torque adjustment and forward and reverse rotation functions provide versatility and precision.
3. With large-capacity battery, Type-C fast charging.
4. Coaxial polishing pen, can be used wirelessly.
5. Four-speed torque switching, forward and reverse adjustment.
6. Suitable for IC polishing, board polishing, shielding cover cutting, jade carving, etc.