Receipt Inspector Supervisors shall also demonstrate experience as proficient machined parts inspectors that meet or exceed the qualifications and experience identified below: Required Skills and/or Experience: Typical Trade Tasks The Receipt Inspectors shall demonstrate at least 3 years' experience of performing: a. profilometers, digital height gages, calipers, screw pitch gages, variable thread pitch gages, optical comparator, hardness tester, precision gage blocks, plug gages, and dial indicators).