Tools for pressing. Punches with cylindrical head and straight or reduced shank Ingestion-build-180956 Adverse effect on signalling systems

Adverse effect on signalling systems or track circuits

2 Safety requirements

— the various communication protocol layers:

or specifications

COS and SO2

Tools for pressing. Punches with cylindrical head and straight or reduced shank Ingestion-build-180956 Adverse effect on signalling systems1 Scope This International Standard specifies the basic dimensions and tolerances, in millimetres, of punches with cylindrical head and straight or reduced shank. Cylindrical head punches with reduced shank are standardized in round, oblong, square and rectangular shapes. This International Standard gives examples of materials and their hardness, and specifies the designation of punches. These punches are available with shank diameters, D1, from 3 mm