| 摘要 |
A jigsaw-type saw blade, typically 6''x3/8''x1/8'' stainless steel having teeth angled to saw only in a thrusting direction, is fixed to a handle, typically plastic, that engages the thumb. Two jaws of a sliding vise member each slide independently along the saw blade. A first one of the vise's jaws is biased in separation from the handle by a spring that extends coaxially about the saw blade between the jaw and handle. The remaining, second, jaw presents an external surface contoured to receive two fingers disposed in symmetrical positions on either side of the saw blade. In use for clamping and sawing, a workpiece is inserted between the vise's jaws and into a first position proximate to the saw blade while the sliding vise member is in a position extended from the handle. The handle and the second jaw are grasped and squeezed between the thumb and a two fingers, thereby simultaneously clamping and sawing the workpiece. The force of the compressed spring allows a reciprocal, return, stroke when the squeezing is relaxed. The workpiece may alternatively be held and sawed in a second position between an exterior rib of the second jaw and a saw table surface. Holding and sawing in both positions may transpire entirely by use of but a single hand.
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