Mechanical Pencil (0.5 mm and 0.7 mm lead sizes):

1. Precision & Consistency

Designed for technical drawing, drafting, and detailed writing.

Provides a consistent line width without sharpening needs.

2. Lead Size Options

Available in 0.5 mm (fine lines) for intricate work.

0.7 mm (medium lines) for smoother writing and shading.

3. High-Quality Lead Mechanism

Advance mechanism (push-button, twist, or auto-feed) for smooth lead extension.

Lead protection to prevent breakage (e.g., retractable tip or cushioned clutch).

4. Durable & Ergonomic Design

Metal or high-grade plastic body for durability.

Knurled or rubberized grip for comfort and control during long use.

5. Additional Features

Built-in eraser (often under a cap) with a lead refill window.

Pocket clip for portability.

Rotating or fixed lead sleeve for stability when writing/drawing.

6. Compatibility

Works with standard HB, 2B, or H leads (depending on user preference).

Some models support multiple lead sizes with adjustable sleeves.

7. Ideal Users

Engineers, architects, artists, and students who need precision.

Suitable for writing, sketching, and technical drafting.