| 摘要 |
A motor-driven ball cutter is disposed in a guide member held in relation to the rotational drive axis and being suspended for pivoting on an axis traversing the rotational axis in the ball's center due to mounting of the suspension coaxially to the rotational axis by means of a handle. The guide member is provided, for example, with an arcuate, outwardly tapered slot against which bears the work. The cutting depth is adjustable. |
