Tsawaitawa
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Extension Don Diamond Core Bit
Madaidaicin haɗuwa da sauri don ƙwanƙwasa ƙwanƙwasa lu'u-lu'u don zurfafa zurfafa a cikin kankare ko masonry.Ƙarshen biyu na tsawaita girman zaren iri ɗaya ne, ɗaya kawai mace ɗayan kuma namiji.