ESAW SCREW GAUGE are used for precise measurement of a spherical or a cylindrical object, a screw gauge is the best instrument. ESAW Screw Gauge is an instrument that is used for measuring the diameter of thin wires, the thickness of small sheets such as glass or plastics. Learn screw gauge sizes, charts, diagrams, and conversions to inches. Understand how screw gauges work with this easy student guide. Feeler Gauge Set 26 Blades .03 to 1.00 MM, Screw Pitch Gauge /Thread 4 to 62 TPI, 0.25 to 6.0 MM, SWG Wire Gauge & Circular Wire Gauge (PACK OF 4) This experimental simulation on Screw Gauge is one of the best Virtual experiments out there to understand concepts of MSD, CSD, Zero Error, and also for measuring the thickness of different objects. Moreover, it can be used as an exercise during classes.