As per DIN 3117 Form A, angle 15 (reference 10, 31) and 22.5 ( reference 86, 87) BS 6333, ISO 6787 and ASME B107.8M-1996.

Phosphated. Traditional models, where the 10 model is equipped with measuring scale and one end shaped to remove bicycle tyres etc. 31 model with measuring scale and alligator jaw. The alligator jaw is used as a pipewrench.IP = Industrial pack.