Guhring says that its latest generation of Pionex thread formers incorporates a new design that requires 30% less torque than previous product lines, thanks largely to optimisation of the tool’s groove, polygon shape and surface preparation. According to the company, the result is smoother cutting action, extended tool life, improved reliability and consistency, and better thread quality and precision.

Pionex 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 new Guhring polishing technique that makes the surface of the thread formers smoother than ever before.
With regard to 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 re-aligning the geometry of the decisive operating radius, which is the focal contact point between the tool and workpiece, the torque requirement and stress on the tool are reduced.
The Pionex series is available in all major thread types, including metric, metric fine, UNC, UNF and pipe thread. In addition, the taps cover diameter tolerances of 6HX 6GX, the form C and form E. Guhring has also made the thread formers available with through-coolant.
For further information www.guhring.co.uk