Hans Ehlers, AB is a provider of products and services such as plug gauges,snap gauges,ring gauges,feeler gauges,step gauges,master gauges,master gears,comparator gauges for splined and serrated joints,reference discs,reference measurement standards,thickness gauges, magnetic,checking gauges, mechanical, for holes,checking gauges, mechanical, thickness,checking gauges, mechanical, for profiles,gauges, tungsten carbide faced,gauges, vee belt measuring,sine bar measuring equipment.