Portable Cordless Grinding Machine Handheld Rechargeable Grinder Mini Polishing Engraving Pen Set

Features:
It held like a pen for accurate work, makes you work b-etter and less fatigue.
Accurate and practical, high concentricity, the clamping range is 0.5-3.2mm.
Large capacity battery for long service time.
Made of fine quality material, nice strength and strong corrosion resistance.
Anti skid button, pure copper switch improves conductivity.
Small size, light weight, convenient and easy for accurate operation. Suitable for pedicure and manicure.
Insert one grinder drill bit pin to lock the main spindle to change the drill bits.
Standard accessories, simple operation and convenient installation.