Internal cylindrical operations include most of the common hole-machining operations, such as drilling, boring, reaming, counterboring, countersinking, and threading with a single-point tool or tap.
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- 在螺絲車(chē)床上，靠絲杠驅動(dòng)刀架，使車(chē)刀的運動(dòng)與主軸的轉動(dòng)準確配合。內圓車(chē)削叫作鏜孔，用以擴大已有的孔。要在實(shí)心工件上進(jìn)行內圓車(chē)削，得先鉆孔；用普通車(chē)床可以鉆同心孔。
