Grivel Corrugated Horizontal Piton by Curator · June 20, 2014 Stubia carabiner for scale The piton is not symmetrical and the pressed grooves are not in line with the direction it would be nailed. Slightly different view of the splits on the blade and the corrugated design go this piton. Due to the force of the stamping the tip of the blade has two small spits along the pressed seam. The spine of the piton showing the corrugation of the blade. The blade appears to have been stamped in a press to create the ripples in the blade. Side view showing the thin blade of the piton Share