Description Features: This product adopts ergonomic design and is made of all metal materials. It is beautiful, practical and multi-functional. The product adopts wireless lithium battery design. It is portable and practical! Product parameters: Power supply mode: 3.7V lithium battery Battery capacity: 1000 mAh 10440 battery Clamping diameter: 2.35mm Machine speed: 35000r/min Material: 304 stainless steel Net weight: 65g Body length: 140mm/5.51in Body diameter: 12mm/0.47in Packing list: Engraving pen lithium battery Silicone pen case tool kit Wooden box.
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