As 1100.101 1992 Technical Drawing General Principles.pdf 99%

| Line style | Thickness | Typical use | |------------|-----------|--------------| | Continuous thick (0.5–0.7 mm) | Thick | Visible outlines, edges | | Continuous thin (0.25–0.35 mm) | Thin | Dimension lines, hatching, leaders | | Continuous thin freehand | Thin | Limits of partial/ interrupted views | | Dashed (short dashes) | Thick/Thin | Hidden outlines/edges | | Chain thin | Thin | Centre lines, pitch circles | | Chain thick | Thick | Cutting planes |