The taps are manufactured from a powder steel compound with high wear resistance, while a TiCN surface treatment provides durability. This combination of characteristics is complemented by a newly developed Guhring polishing technique that makes the surface of the thread formers smoother than ever before.
Regarding geometry, both the groove depth and width are increased to transport more lubrication to the focal area of the thread former. Another key feature of Pionex is the shape of the polygon; by realigning the geometry of the decisive operating radius, which is the focal contact point between the tool and workpiece, both the torque requirement and stress are reduced.
Guhring’s Pionex series is available in all major thread types, including metric, metric fine, UNC, UNF and pipe thread. The company has also made the thread formers available with through-coolant.