Babban Sashe na Core Bit
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Sashe Uku Core Bit (Haɗin kai+Tube+Bit)
Yafi amfani da hakowa kankare, ƙarfafa kankare, bulo, block da dai sauransu Fast, smoothly da kuma tsawon rai.Yanki akan ƙananan rago na iya zama Nau'in Al'ada, Nau'in Turbo
Machinery: Rikicin hannu, injin hakowa.Yin amfani da rigar.