Line drawing tool and straight edge ruler set designed for durability and precision. - Line drawing tool: wear-resistant and does not deform after long use. - Ruler: finely crafted, wear-resistant, very practical for drawing straight lines. - Line ruler: easy to use and produces accurate results. - Guiding line ruler: made from high quality materials and supports long-term use. Practical applications - Drafting and architectural layout: establish clean, straight construction lines on blueprints and drawings. - Woodworking and metal fabrication: mark precise straight cut lines on boards, sheets, or stock before cutting. - Model making and general drafting: create accurate guide lines for assemblies, scales, and detailed designs. Key attributes - Function: provides reliable straight lines with consistent accuracy. - Material: constructed from quality materials for durability and long-term performance. - Size and use: suitable for standard drawing and construction tasks; designed for easy handling and quick alignment. - Performance: maintains shape and measurement integrity under repeated use for dependable results. This description preserves the original concepts of a wear-resistant, deformation-resistant line drawing tool and related rulers, presented in clear, customer-friendly English with practical use cases.