, different concepts: percussion drill came to work on spin and impact, the impact of the single is very slight, but many times per minute is continuous impact frequency of force. , impact pattern: percussion drill is to rely on two pieces of impact effect on friction gear to each other, and impact hammer is cylinder piston movement, so electric hammer impact than ordinary percussion drill. Electric hammer is rely on the rotation and beat to operate. A single pounding force is very high, and with every minute to beat frequency, can produce significant force. Electric hammer compared with percussion drill, electric hammer need minimum pressure to go hard materials. , work principle, work in percussion drill in the drill chuck has adjust knob, adjustable ordinary hand electric drill and impact drill two ways, but the impact drill is implemented using the shaft gear beating each other impact effect, the impact is far less than electric hammer. It can drill concrete, but the effect not beautiful. Electric hammer is used at the bottom of the motor drives the two sets of gear structure, a set of implementation it drill, but another set of a piston, a hydraulic engine stroke, have a powerful impact, with the effect of drill, power can crack rock gold. , different functions: the function of the li-ion battery electric hammer is relatively more, you can set screwdriver, electric drill, electric hammer function in one body. Impact drill efficiency is slower than the electric hammer drill wall, also can't penetrate walls, but in the later than the electric hammer drill aspects while the iron is hot to play wood works. And many better than impact drill, electric hammer drill wall can drill the effect will be less impact drill is convenient, so each have each advantage. Electric drill have only rotating way, particularly suited to the needs a small force on the material of drill hole. Impact drill and impact on spin to work. The impact of the single is very mild, but every minute of the day, the impact of the multiple frequency can produce continuous force. Impact drill can be used for natural stone or concrete. Electric hammer and pounding on spin to work. A single pounding force is very high, and with every minute of the day, that the beat frequency, can produce significant force. Compared with percussion drill, electric hammer need minimum pressure to go hard materials. Have cylinder electric hammer, impact drill, no. Holes on the wall, electric hammer, to use electric hammer of axial vibration load is very useful. Electric hammer can be used as a chisel is turned not only impact hammer impact drill is also can be a drill of impact drill is electric hammer drill is pit edges. Impact drill is given priority to with switch, with a slight vibration, can only in drilling easy place. Electric hammer is given priority to with impact, has a strong vibration, punchs a hole in the cement wall must belong to it. Volume, weight and power, of course, electric hammer are much larger. You can according to the practical use considered when choose.
