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Square Handle Four Pits Electric Hammer Bit Stone Drill through Wall Cement Drill Concrete Construction Chopping Bit Hard Alloy
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electric hammer drill (electric hammer drill), which is impact drill of the two functions of "hand-held motor-operated electric tools" and "electric hammer"," impact drill"The impact mechanism with rotary cutting as the main part and impact force drives chopping bit. While driving the drill bit to do rotary motion, there is also a reciprocating hammer movement perpendicular to the rotating surface of the drill bit. Used for drilling on concrete, brick, tile, marble and other materials. "Electric Hammer" drives steel brazing with impact force, which is used for grooving, opening large holes or crushing concrete on concrete, brick and other materials.