Steel extrusion wire tapping NRT, non-alloy extrusion tap B-NRT, titanium handle squeeze wire tapping TIN-NRT, IT use titanium extrusion, extrusion fine wire tapping screw type, tusk / short teeth / standard Tooth squeeze wire tapping and other product specifications are M1.OM1.2 M1.4 M1.6 M1.7 M2 M2.5 M3 M3.5 M4 M5 M6 M8 2-56 6-32 8-32 1 / 4-20 1 / 4-281 / 4-32, etc., particularly suitable for extrusion tapping lower strength, good ductility copper alloy and aluminum, can also be used for low carbon steel, stainless steel and low hardness, the plastic material having a large attack silk, long life