Abstract: A diameter-measuring gauge for measuring the diameter of rods, pipe and the like comprised of a thin panel having a V-shaped recess formed in one of its side edges. The recess extends through the panel which carries a plurality of oppositely disposed shoulders along opposite recess-defining portions of the panel, the distance between said opposed shoulders being one of the standard diameters of rods, pipe, or the like. The distance between the shoulders of each pair is less than the distance between the shoulders of the adjacent outwardly disposed pair. Suitable indicia is carried at the surface of the panel to appropriately indicate the diameter of a rod or the like, which bears against the adjacent pair of shoulders. The gauge is simple, easy to use, and highly practical. In addition, it is inexpensive to manufacture and, as a consequence, is readily adaptable for use as a give-away advertising item, as well as a standard item in a worker's tool box.

Abstract: A double-pivot circle-cutter including a pivot member pivotally mounted on a support arm and having a sliding beam slidably extending therethrough. The pivot member is vertically adjustable, and its axis of pivot extends through the support arm. The sliding beam carries a platform which in turn pivotally supports a holder for a cutting member adjacent one end of the platform. The axes of pivot of the pivot member and of the cutting-member holder are parallel, and the latter shifts with the sliding beam to make the distance between the axes equal to the radius of the desired circular cut.