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Behappy Crafts (suzhou)Co.,Ltd
A Hammer Drill, also known as a percussion drill or Impact Drill, is a power Tool used chiefly for drilling in hard materials.It is a type of rotary drill with an impact mechanism that generates a hammering motion. The percussive mechanism provides a rapid succession of short hammer thrusts to pulverize the material to be bored, so as to provide quicker drilling with less effort. If a hammer drill's impact mechanism can be turned off, the tool can be used like a conventional drill to also perform tasks such as screw driving.