“Go-No Go” snap gauges (Item 888) and progressive “Go-No Go” limit snap gauges (Item 889).
Rigid body in stabilised special steel.Case-hardened and tempered calibration sectors.Lapped surfaces.
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Carabide double ended snap gauges.
Rigid body in steel hardened and toughened duly marked GO-NOGO sizes.
Guaging jaw tips tungsten carabide.