INDUSTRIAL MEASUREMENT & INSTRUMENTATION Topic:- 1) Feeler Gauge 2) Thread Gauge 3) Slip Gauge With Construction Working……. By:Name:- Sanket Jadhav Roll No. :- 2118 1. FEELER GAUGE feeler gauge is made up of a series of steel plates or blades which have a progression of very precisely calibrated thicknesses often joined at one end with a pin or rivet and which fold back like a fan into a handle. Each blade is marked with its thickness. A feeler gauge is used to measure or set very small gaps, normally under 1 mm.