Specifications:Material: Plastic + Alloy Size:Chisel: 15.5*3cm/6.1*1.18" Wrench Length: 9cm/3.54" Carving Knife Length: 4.5-4.7cm/1.77-1.85" Features:The electric chisel requires a support grinder or a small mill or soft shaft with a soft shaft with a soft shaft that can be disassembled on the soft shaft and cannot be used alone. The engine speed should be less than 12000 rpm. Each electric chisel is equipped with 5 special knives and a small wrench. New electric woodworking chisel, carving knife instead of traditional hand carved, it is faster than hand carving several times, saving time and labor.1/3 of the force can be hand carved, speed 3-5 times for carving, no fatigue. When the knife touches the wood, it produces 25000 minutes of high speed and small vibration per minute, which is carved by this rapid vibration. Besides ordinary wood, it can also engrave ebony, soft plastic and so on. The shell is solid, the heat dissipation performance is excellent, and it is very safe. It is mainly used for wood, furniture engraving, antique floor carving, potted plants, toys, figurines, animals and other sculptures. Packing List:Product Includes:Option A:1 X Chisels5 X Knives1 X WrenchOption B:1 X Chisels5 X Knives1 X Wrench1 X Soft Shaft