Assertion: finger hole | /r/CapableOf | finish operation
Facets:
value: for the ball
type: PURPOSE
Source sentences:
text: The finger hole finishing operation for the ball P is carried out while smoothly turning the turntable 71 at 360° turning angle about the stepped shaft hole 74 under the guide of the plurality of steel balls 75 placed in the circular groove 73 of the bottom surface of the turntable 71.