Here's what other sites are saying:
TOP pitons are forged from Chromolly steel in four different sizes: Sizes 55 and 80 have chisel points to place in granite cracks. Sizes 60 and 80 have sharpened points to place in limestone pockets.
- Ramsey Outdoor
On Sale. Grivel Top 60 Forged Piton (Fall 2007) The Top 60 Forged Piton by Grivel is hot-forged from ChroMoly steel. There are three different shapes: 160s have pointed tips to place in limestone pockets, the 162 has an offset eye to assure good camming action when the piton is loaded, and 165s have chisel-shaped points to place easily in granite cracks. The length of the piton is marked (in centimeters) near the eye so if you encounter one that's fixed you can tell something about it. Still, nothing beats a in.hammer test,in. which hopefully delivers a satisfying ringing sound. All Top pitons have the same thickness: 9/32. Specifications: Weight: 90 gm Size: 60 x 7 mm Materials: ChroMoly Steel Construction: Hot-forged LA Style Forged Piton