SPLINE PLUGE GAUGES Use: For Quick and Accurate inspection of internal involute/serration/ straight spline Range: Dia. 12mm to 150 mm Quality Standard: Involute Spline ANSI B92.1 1970 Material: OHNS SAE 01/02 Hardness: 58-60 Hrc. Profile: INVOLUTE/SERRATION/STRAIGHT Gauge Quality: As Per DIN-3962 Class-5