Abstract: A 360.degree. screw thread cleaner which is a hand operated tool for cleaning the spiral grooves of threads on the exterior of a pipe. It has sliding jaws, which have cleaning bristles, and the jaws adjust simultaneously when a scroll section is rotated either clockwise or counterclockwise for smaller or larger diameter pipes.

Abstract: A clamp which can be held in a vise, and the clamp has a plurality of clamping portions which will allow it to be held in the vise in a plurality of positions.

Abstract: A vice has a pair of parallel, work-piece clamping jaw-members, which jaw-members are spaced laterally apart. The first jaw-member is a semi-rigid one, while the second jaw-member is completely slidable as an integral unit, and also allows for the two jaw-elements thereof of which it is comprised to be movable toward and away from each, whereby the second jaw-member may be used separately to hold a workpiece, and may be used in conjunction with the first jaw-member for assisting the first jaw-member in firmly and safely clamping a workpiece in order to provide a more stable holding of the workpiece during the working thereof. The second, floating jaw-member may be adjusted for holding the smaller-diameter portion of a long workpiece, while the fixed jaw-member holds and clamps the larger diameter portion of the same workpiece.