Pitons are sized and manufactured to fit a wide range of cracks. From small to large, the most common are: •
RURP (Realized Ultimate Reality Piton) – a tiny piton the size of a postage stamp used in thin, shallow seams. It was designed by
Tom Frost and
Yvon Chouinard in 1959 and was manufactured by Chouinard Equipment in the 1960s. It is not a strong piece, and is mainly used for
aid climbing, although it can feature as protection on extreme free routes (e.g. Rurp The Wild Berserk (E6 6b) at The Brand, Leicestershire, UK). •
Beak – hooking pitons with the ability to hook, which can be placed without a hammer. Known often as Birdbeaks named for
Jim Bridwell whose nickname was "The Bird". •
Knifeblade – also known as a bugaboos, are thin straight pitons, that work in thin, deep cracks. •
Lost Arrow – also known as a wedge piton, was designed by
John Salathé and Yvon Chouinard (named after Salathé's ascent of
Lost Arrow Spire), is a hot-forged, tapered piton for medium-sized cracks. •
Angle – A piton made of steel sheet bent into a "U", "V", or "Z" shape; works well for larger cracks, where the steel deforms elastically as the piton is placed. •
Bong – The largest pitons are angles made from sheet aluminum called a
bong, named for the sound they produce while being hammered into place (or dropped). Largely replaced by
camming units and
nuts (chocks) that perform better and without damaging the rock. Wired Chouinard RURP.jpg|Wired Chouinard
RURP File:Climbing gear - Seneca Rocks pitons - 20.jpg|
Knifeblade pitons File:Fichtelhaken.jpg|Soft Metal
Lost Arrow File:Profilhaken.jpg|Medium size
Angle ==Development==