Since 1932, Webster Instrument, Inc. has manufactured portable WEBSTER Hardness Testers to support a variety of quality control applications. We currently produce three models of our hardness tester to accommodate different material types and sizes. Our extremely experienced staff has specialized in the production, calibration, repair and support of our testers for over 85 years. All of our products are manufactured and assembled in the U.S.A. from domestically sourced materials.