Home / Crimp Tool Gauges / Gauges / G649 G649 GAGE GO .4125 NO-GO .4175 Add to quote SKU: G649 Category: Gauges Description Description GAGE GO .4125 NO-GO .4175 Related products Gauges G1007 GAGE GO .0860 NO-GO .0950 – M309 Gauges G1003 GAGE GO .0520 NO-GO .0570 – M309 Gauges G1008 GAGE GO .1000 NO-GO .1100 – M309 Gauges G1021 GAGE GO.0495 NO-GO.0530