Abstract: The invention is a gauge comprising a body, guide, micrometer head having a rod and an arm slidably coupled to the guide and to the micrometer rod. The arm in one version of the invention is coupled to a spring which holds the arm against the micrometer rod allowing precision settings to be made. Another version of the invention features a pivotable arm which helps prevent the arm from being damaged when the item to which the measurement is being made moves against the arm. An adjustment rod can also be used permitting two settings to be made for one part. The invention is utilized in measuring the distance on an item where a bend will be made on the item by a power brake.