![Figure 4](/ServeContent?url=http%3A%2F%2Fdbm.sagepub.com%2Fcontent%2F4%2F1758736013483747%2FF4.medium.gif)
Figure 4
(a) Feed force and rotational frequency versus bur displacement and (b) feed force versus rotational frequency.
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(a) Feed force and rotational frequency versus bur displacement and (b) feed force versus rotational frequency.