Home / Crimp Tool Gauges / Gauges / G640 G640 GAGE GO .0370 NO-GO .0420 Add to quote SKU: G640 Category: Gauges Description Description GAGE GO .0370 NO-GO .0420 Related products Gauges G1018 GAGE GO.1920 NO-GO.1980 Gauges G1008 GAGE GO .1000 NO-GO .1100 – M309 Gauges G1023 GAGE GO.1225 NO-GO.1295 Gauges G1006 GAGE GO .0760 NO-GO .0810 – M309