Flexible Tip: Delivers writing flexibility with 0.3mm, 0.5mm, and 0.9mm tips to meet the needs of technical drawing and various writing applications. Solid Materials: Featuring a stainless steel design, this full metal pencil delivers enduring strength and reliable mechanical function as an automatic pencil. Precision Lead Control: Optimized for smooth lead extension, it minimizes interruptions with precise click output and a resilient spring mechanism, plus a userfriendly pressing design. Consistent Drafting Performance: Fixedguide tip provides smooth angled writing and dependable performance for precision drafting tasks. Use scenarios: Technical drawing and schematics that require different line widths using the 0.3mm, 0.5mm, and 0.9mm tips. Architectural drafting and engineering sketches in the studio or on site, where durability and precise lead control matter. Precise labeling, notes, and annotations during design reviews or measurements.