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 G1005 GAGE GO .0690 NO-GO .0740 – M309 Gauges G100 GAGE GO.0200 NO-GO .0220 (Image for Illustration purposes only) Gauges G1008 GAGE GO .1000 NO-GO .1100 – M309