View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.GREEN LABEL DRILL ROD is a high-quality, tough, fine-grain, straight-carbon, water-hardening tool steel with a medium hardness penetration. It is supplied with a smooth, decarburization-free surface and can be used with very little machining for applications such as shafts.