Designed by Omega Technologies to facilitate accurate rivet hole drilling for standard Plate Nuts (also commonly known as Anchor Nuts, or Nut Plates), hand-held Nut Plate Jigs are manufactured to precise tolerances and include drill bushings to reduce wear and assure consistent hole-spacing. Redesigned pins and pilots make the tool much easier to use.
Each tool features an ergonomically designed handle with a flexible stainless steel spring blade, allowing for clearance while the jig is in use. Its convenient size allows it to fit most tool-box cut-outs. A spring-steel band between the handle and the head allow for finger clearance or positioning of the tool in cramped quarters. Note: the terms Anchor-Nut, Plate-Nut, or Nut-Plate are frequently used interchangeably. They all refer to a group of fasteners consisting of a Threaded Nut Element which may be affixed (anchored to) another structure.
Please see this article for further discussion and images of typical anchor nuts.