Electric Mini Grinder Engraving Pen Graveerpen Wireless Grinder with Battery Cordless Micro Rotary Tools Drill for Jewelry Metal

Type1&Type2 Product parameters:

Clamping range: 2.35mm

Collet depth: 25mm

Speed: 5000-10000-18000

Power: 10W

Battery voltage: 4.2V

Battery capacity: 300mA

Charging time: 80% in 30 minutes, 100% in 60 minutes

Weight: 40g

Length: 120mm

Width: 16mm

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Type 3 Product introduction