| 摘要 |
A rotary cutting tool is proposed which can be used both for rough cutting and finish cutting in a stable manner, and which has a mechanism for individually adjusting the axial positions of the cutting edges of a plurality of throwaway inserts which is simple in structure. The inserts 2 are received in a plurality of insert-mounting grooves 5 formed in the outer periphery of the tool body 1 at its front end and fixed to the tool body by clamp means 3. An adjusting screw 4 for axially positioning each insert is axially threaded into the tool body near each groove. Each groove 5 includes three seating faces for positioning and restraining the insert 2 in three directions. Each insert 2 can be axially positioned by either of one of the seating faces 5c for axially positioning the insert 2 or the top of the head of one of the adjusting screws. Only an insert or inserts that are axially offset from other inserts by more than a predetermined distance are axially moved for axial positioning by the corresponding adjusting screws.
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