| 摘要 |
A locking hand tool has an adjustable jaw and an opposing movable infinitesimally adjustable jaw, a fixed handle and a movalbe handle and lever-locking elements between for establishing and maintaining a toggle relation between the jaws when in a closed position. An extension bar is at a fixed angle to the fixed handle. Elements support and move the movable jaw along the extension bar, and hold it securely at any position. A user can clamp on and hold a workpiece securely with the use of only one hand.
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