Electric welders need the following essential tools: 1, welding pliers; welding pliers are used to clamp the welding rod and conduct the welding current to welding tools, commonly used welding pliers model 300A and 500A two. 2, welding cable; welding cable is connected to the welding power supply and welding pliers, workpiece wire, its role is to conduct the welding current. 3, angular grinder; angular grinder, it is actually a small electric sander, mainly used for grinding bevels and weld joints, such as the same diameter wire wheel, the same diameter wire wheel, the same diameter wire wheel, the same diameter wire wheel. 3, angle grinder; angle grinder, it is actually a small electric sander, mainly used for grinding bevels and weld joints, such as the same diameter wire wheel, can also be used to remove rust. 4, flat shovel; used to remove the welding slag, spatter and weld tumors, etc. 5, electrode insulation cylinder; electrode insulation cylinder is the welder in the construction site to carry a small amount of storage of electrodes of a thermal insulation container. Welding rod insulation tube can make the welding rod from the oven after taking out continue to keep warm to maintain the dryness of the coating of the welding rod in use, its internal working temperature is generally 150 ~ 200 ℃, the use of welding power supply output as a heating energy source. 6, knocking slag hammer and steel wire brush; knocking slag hammer and steel wire brush role is mainly to clean up the weld surface, weld slag between the layers of weld and weldments on the rust, oil. Commonly used slag hammer 0.5kg, 0.7kg, 1.5kg three kinds of hammer ends are often ground into a conical or flat spade shape.