Rotatable cutting tool and key therefor
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United States of America Patent
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Aug 4, 2020
Grant Date -
Feb 2, 2017
app pub date -
Jul 28, 2016
filing date -
Jul 29, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A rotatable cutting tool, which extends along a tool axis defining an axial direction, includes a cutting formation in a first axial longitudinal end region, which is configured for material ablation on a workpiece, and includes a screw-connection formation in a second axial longitudinal end region opposing the first, which is configured for screw connection with a coupling unit. The cutting tool includes key-contact surface formations diametrically opposing each other with respect to the tool axis, which are configured for torque-transmitting abutting engagement with key surfaces of a key. Each of the key-contact-surface formations includes at least two key-contact surface regions provided with spacing from each other in the circumferential direction about the tool axis, which key-contact surface regions are inclined away from each other such that they form a vertex projecting away from the tool axis.
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