500mW 405nm Blue-violet Light Laser Head for DIY Carving Engraving Machine Engraver Accessory precious metal tester Metal soft tube can be

Metal soft tube can be bent freely at any different angles and lens height and its position can be adjusted at will to meet the different needs of consumer

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500mW 405nm Blue-violet Light Laser Head for DIY Carving Engraving Machine Engraver Accessory precious metal tester Metal soft tube can beThis item is a necessary accessory for DIY engraving machine. It is a professional laser head with high speed and high stability. Features: Professional laser head with high speed and high stability. Bright blue violet light, easy for locating when engraving. Adjustable laser head, easy to adjust, ensure engraving with good quality and high efficiency. Can be used to engrave bamboo, leather, cut paper, PCB or other flammable materials. Suitable for