Features:

• Can be hand carved 1/3 of the force, 3 to 5 times the speed of engraving, without fatigue.
• High speed vibration of 25000 times per minute is generated after the knife head touches the wood, and it is carved with the ultra high speed vibration.
• Can save two-thirds of the force of usual hand-carving.
• Shell is a solid, cooling efficiency is excellent, very safe.