Many people are confused when they choose power tools for the first time. They can’t tell the difference between electric drills and rotary hammers, and they can’t figure out what materials these power tools can drill.
So, Impact drills, electric drills, and rotary hammers are all used to punch holes. What is the difference between them and what is their working principle?
Mainly used for drilling and screwing. Including 2 general categories: corded electric drills using AC power and cordless drills powered by batteries. Additional functions include adjustable speed and chisel function. The “chisel function” here refers to the impact gear attached to some electric screwdrivers (electric drills), which is, in fact, not really the “impact function”
The impact drill drives the drill bit through the transmission mechanism to achieve drilling. Its impact and rotation modes can be switched. It relies on the axial movement of the two raised gear discs at the front and rear, and the gears will jump between them, thereby generating continuous impact force. The protrusions of these two gear discs are not very high, and the impact force generated is not large. Impact drills are mainly used for punching holes in walls, metal, and wood, and they can also punch holes in concrete, but the effect is not very good. Drilling depth is not as good as electric hammer.
A big killer for reinforced concrete and granite. The rotary hammer has a pneumatic hammering mechanism, which uses the piston movement to compress the gas to drive the drill bit for hammering, which can efficiently drill holes on hard materials.
As people use power tools as common equipment in production and life, the application range of tools such as electric drills, rotary hammers, and impact drills continues to expand. Electric tools that can improve work efficiency will definitely play an important role in economic development. In recent years, electric tools It is also included in the category of advanced equipment manufacturing industry. At the same time, with the development of battery technology, especially the breakthrough of lithium battery technology, high-power electric tools have begun to use Lithium batteries, and wired electric tools will gradually be replaced by wireless electric tools.