| 摘要 |
A workbench of a collapsible nature includes a top structure comprising a pair of vice members. These can either be spaced from a supporting surface in a first work-mode at saw-horse height or, by lowering of legs, in a second work-mode at full height. Each vise member is provided with two rows of cylindrical bores in which the shank portions of abutment members are axially and slidably received with a snug fit and are thereafter rotatable about a vertical axis to enable the gripping faces of the abutment members to self-align with a workpiece clamped between the abutment members. |
