Main parameters: Voltage:AC220V power:250w Dimension:300*220*200mm Weight:10kg Function:the pearl drilling machine adapt high accuracy rail,with stable route and high processing speed. Suitable for pearl in shape of round,rice and special, and other material, such as wood and soft stone. It can drill pearl within 3-25mm by tungsten steel drill bit. The drilling depth is adjustable and it can drill double face at a time. Dimension:300*220*200mm Weight:10kg