The material is made of chrome steel, which is used in many high-end models. Chrome steel is a high strength alloy for durability.
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It has the hardness of cutting concrete, but is resistant to heat, and can be used continuously for a long time.Achieve work efficiency.
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By adopting SDS plus bits, the driving contact area is expanded, the striking rotational force is conducted straight to the edge, and the drilling speed is greatly improved.
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