Abstract: A front gauge which has a pair of arms (20) attached to a machine tool with a front and rear head assembly movably positioned thereon defining a pair of indexing members (34) providing an adjustable measurement. The head assemblies have a front head (32) connected by springs in bias with a positioning screw (50) to a rear head (40) providing separable adjustment. A manual lever operated pin (56) in the rear head mates with one of a series of holes (22) in the arm furnishing an incremental adjustment of the head to the nearest whole number distance from the tool. The adjusting screw is rotated changing the relationship of the heads a fractional dimension, as read by a dial indicator (64) positioned on one head contiguous with the other, thereby achieving accurate measurable distances from the tool to the gauge overcoming inaccuracies of rear mounted gauges.

Abstract: A backgauge locator which provides manual adjustment of the backgauge relative to the die elements of a machine tool press brake. When used in pairs, each probe tip is contiguous with the outer edge of the workpiece to prevent parallel misalignment. The body is slideably attached to the machine tool backgauge to compensate for varying widths of the workpiece having an over-center spring loaded cam for manual positioning. A probe is pivotally located in the body and spring loaded to engage a micrometer head providing controlled linear movement. The probe pivots upward to allow for secondary bends of the workpiece without damaging the precision micrometer head and the tension spring also acts as a return mechanism to reposition the probe when the workpiece is removed.