目(mu)前潛(qian)孔鉆(zhan)頭大(da)都采用球(qiu)型鑿巖(yan)合金齒頭部和花鍵形尾柄。鉆(zhan)頭合金可根(gen)據形狀分為半球(qiu)齒、錐形齒、拋物線齒等多種(zhong)類(lei)型。半球(qiu)齒承載能力強，耐磨性(xing)(xing)好(hao)，適(shi)合鉆(zhan)鑿堅硬、中硬及磨蝕(shi)性(xing)(xing)巖(yan)石
潛(qian)(qian)孔鉆頭(tou)型(xing)號：qk880-6j-oh、qk880-6jg-oh、qk980-6j-oh、qk1090-6j-oq、qk13105-8jgb-oq、qk13114-4j-oq、qk13113-4j-oq、qk13114-8jg-oh、qk13115-8jg-oh、qk18165-8jg-oh、qk24175-6j-og等潛(qian)(qian)孔鉆頭(tou)釬頭(tou)直徑(jing)：65～130mm。
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