Zodiac Electronic & Scientific Corporation manufactures Chromium Steel made Vernier Calliper. Zodiac Electronic & Scientific Corporation also manufactures various types of Electronic Instruments and Physics Instruments. The Chromium Steel made Vernier Calliper has one side graduated in inches and other in cms. The Chromium Steel made Vernier Calliper has Sandblast finish thumb adjusting sliding lock in velvet lined box. This Vernier Calliper is made of chromium steel for inside, outside and depth measurements with crossed jaws. This Vernier Calliper has sizes ranges from 6" to 12".