**2-in-1 Precision Straightedge: Versatile and Affordable Tool for Accurate Work**

1. **Introduction to the 2-in-1 Precision Straightedge**
    - A versatile tool designed to improve the accuracy of your work.
    - Combines two precision-ground sides into one tool, offering multiple uses at an affordable price.
    - Based on customer feedback, this tool maintains the high accuracy of StewMac products while being more cost-effective.

2. **Key Features**
    - **Two-in-One Design**: Offers two precision-ground sides for different measurement needs.
    - **Comfortable and Durable**: The middle of the straightedge is designed for comfortable handling, durability, and easy pick-up.
    - **Lightweight Material**: Made from industrial-grade 6061 aluminum to keep the weight down.
    - **High-Quality Construction**: Each tool is extruded from high-quality aluminum, finished with a tough black anodized coating, and precision-milled to exacting tolerances.
    - **Guaranteed Accuracy**: Accuracy is guaranteed to +/- .0015" per foot.

3. **Applications**
    - Ideal for building new instruments, repairing vintage pieces, setting up shop tools, or tuning up everyday instruments.
    - Suitable for a wide range of tasks, making it a cost-effective investment for any workshop.

4. **Model Options**
    - **A 10"-12" Combo**
        - **Dimensions**:
            - Length: Two precision-ground sides (10" / 254mm and 12" / 304.8mm).
            - Width: 1-31/32" (50mm).
            - Thickness at center: 0.433" (11mm).
            - Thickness at edges: 0.094" (2.39mm).
        - **Uses**: Perfect for smaller instruments such as mandolins, ukuleles, violins, and more.
    - **B 18"-24" Combo**
        - **Dimensions**:
            - Length: Two precision-ground sides (18" / 457.2mm and 24" / 609.6mm).
            - Width: 1-31/32" (50mm).
            - Thickness at center: 0.433" (11mm).
            - Thickness at edges: 0.094" (2.39mm).
        - **Uses**: Ideal for larger instruments such as guitars, basses, and other big instruments.

5. **Quality Assurance**
    - Each tool is personally inspected before leaving the factory to ensure it meets the highest standards of accuracy and quality.