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Attack tool

Image Number 14 for United States Patent #7320505.

In one aspect of the invention, an attack tool is disclosed which comprises a wear-resistant base suitable for attachment to a driving mechanism. The wear-resistant base has a shank and a metal segment. A cemented metal carbide segment is bonded to the metal segment and the shank has a wear-resistant surface. The wear-resistant surface has a hardness greater than 60 HRc.

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