| 摘要 |
An improvement in a slotter comprising a shank ( 10 ) having a distal side and a proximal side, the shank is adapted to be rotated about a rotatory axis at least two adjacently positioned cutters ( 20, 24 ) provided with blades ( 22 ); and a nut ( 34 ) adapted to uphold the cutters ( 20, 24 ) on said shank ( 10 ). The improvement for adjusting the width of the cutters comprising a hollow bolt ( 26 ) adapted to be mounted on the shank wherein one of the cutters is a movable cutter ( 24 ) that is screwed on said hollow bolt ( 26 ), and a cap ( 28 ) mounted on the shank receives a portion of said hollow bolt and confines the movement of the bolt. Adjusting the width of the cutters is established by screwing the movable cutter ( 24 ) on said hollow bolt so that the movable cutter gets closer to the other cutter or draws away from it, depending on the direction of the screw.
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