Greenfield Tap & Die Co.Clawson, Chris2020-06-212020-06-21Septemberhttps://dspace.montaguearchive.org/handle/MHS-01376/3713GTD Quality inspection includes sophisticated equipment, i.e. optical comparators, precision gauges and gauge blocks, microscopes, Rockwell testing devices (hardness). The most important component in the quality inspection process is highly qualified and experienced personnel.