檢查鉆以確認轉(zhuǎn)動的方向是正確的,切割鉆沒有反向。檢查鉆頭的規(guī)格是否齊全,鉆齒內(nèi)是否清潔。Thedrillshouldbetestedtoverifythattheburrturnsintheproperdirectionandthatitscuttingedgesarenotreversed.Allvarietyofburrsareavailableandtheflukesareneaty.再次強調(diào)調(diào)整臺鉆    （共 313 字）     [閱讀本文] >>