| 摘要 |
An apparatus including a cylindrical body defined by forward and rear threaded end portions to receive a respective forward and rear collar. The forward collar is cooperative with pivotally mounted wedge plates that cooperate with the forward collar to direct associated presser feet into engagement with an associated workpiece to coaxially clamp the workpiece internally of the cylindrical body. The rear collar includes an internally threaded component for cooperation with the rear threads and a radially aligned cutter blade that is directed overlying the workpiece to effect cutting of the workpiece during rotation of the rear collar relative to the workpiece while clamped within the cylindrical body.
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