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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS5543868
Kind Code:
An impacting tool in which a massive hard carbide element is fitted to a steel holder which is reciprocated to drive the element against a formation to be broken. The massive carbide element can be press fitted in the steel holder or shrink fitted therein or brazed thereto and, furthermore, the carbide element can be fitted to a steel sleeve adapted for being secured to a steel holder as by threading or brazing.

Application Number:
Publication Date:
November 08, 1980
Filing Date:
September 07, 1973
Export Citation:
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International Classes:
B25D17/02; E21C37/24

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