... :1/4G,3/8G,1/2G 3.Length:320mm cool tube◊Surface:free from burrs,scratchs◊Features: wildly uesd,with hex ... pcs per nylon bag, 25 or 50 pcs per inner box with labbleCodeMaterialShapeSizeOD of endIDLengthOD of tubeN.W OT1polymethyl benzene pointed ... .4mm11.2mm320mm25.3mm80gOT6polymethyl benzene cross-pein3/8G16.4mm9.3mm320mm25.3mm80g spiral tube