FIELD: reamer for precision working, namely for microcutting surface of openings. SUBSTANCE: reamer includes guiding portion and cutting tip having two cutting zones mutually divided by step and designed for working the same surface of opening. Surface of step is inclined relative to feed direction and forms tool edge for second cutting zone. Such design provides position at which zone of cutting edge arranged radially outside is subjected to less load at using reamer. EFFECT: less wear of cutting edge of reamer. 22 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| TOOL FOR PRECISION WORKING OF BLANKS BY CUTTING | 2001 |
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RU2224623C2 |
