Electric drill is a drilling tool powered by electricity. It is the conventional product of electric tools, and also the most demanded product of electric tools. Annual production and sales account for 35% of China's electric tools.
The main specifications of electric drills are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49mm, etc. The figures refer to the maximum diameter of the drill bit drilled on steel with tensile strength of 390N/mm2. The maximum borehole diameter of non-ferrous metals, plastics and other materials can be 30-50% larger than the original specifications.