What is the difference between electric drill and impact drill?
Because of stone, brick, concrete is hard and brittle properties of metal and bit strong wear on these materials requires the use of drilling drill or hammer, impact drill bit used for inlaid with hard alloy with high hardness, impact drill impact and rotation (as with the drill rod in the rock drill so, while playing the side), the stone became a little bit to be cut down into a hole. If you use ordinary drill in drilling stone or concrete, ordinary drill blade will soon be blunt to scrap, and rotation is the impact of improving the drilling efficiency.
With the dual function of impact drill, electric hammer drill + function. In addition to the force of rotation, the impact electric drill also has an axial vibration force. An electric drill can drill holes in various metals, woods, plastics, etc..
A hand drill is only suitable for drilling metal, wood, or screws, etc. it is not allowed to mix dirt. Percussive drilling can drill holes in brick walls and ordinary concrete except metal and wood.
