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 G1017 GAGE GO.2190 NO-GO.2250 Gauges G1005 GAGE GO .0690 NO-GO .0740 – M309 Gauges G1015 ^GAGE GO .1000 NO-GO .1100 Gauges G1013 GAGE GO .2285 NO-GO .2355