Piolet Tech Machine de Grivel by Stevie Haston.

Heres a little vid from Desnivel Mag Spain, thanks to  Dario the editor. Funny how I still get on with some editors after all these years. This is a short vid, more tech info on the Tech Machine is around, but I'll say this- the Tech Machine is the easiest to use production axe Iave ever used, bar none!