1. Product Overview
The Carpenter Square is a versatile woodworking tool designed for precise measurement and marking. Constructed from durable aluminum alloy with an anodized surface treatment, it offers accuracy for various woodworking tasks, including marking 45-degree and 90-degree angles, and measuring dimensions.

Figure 1: Overview of the Carpenter Square in red and blue variants.
2. Package Contents
Please check the package to ensure all components are present:
- Carpenter Square (main body)
- Assembly screws
- Allen key (for assembly)

Figure 2: Components included with the Carpenter Square.
3. Setup Instructions
The Carpenter Square may require minor assembly before first use. Follow these steps:
- Identify the two main parts of the square and the small screws.
- Align the two parts, ensuring the measuring scales are correctly oriented.
- Insert the provided screws into the designated holes.
- Use the included Allen key to tighten the screws securely. Do not overtighten.
- Verify that the square is firmly assembled and stable before use.

Figure 3: Assembly of the Carpenter Square using the provided Allen key.
Video 1: Demonstration of Carpenter Square assembly and basic usage.
4. Operating Instructions
The Carpenter Square is designed for accurate marking and measurement in woodworking projects.
4.1 Marking Lines
To mark a straight line or an angle:
- Place the base of the square firmly against the edge of your workpiece.
- Align the desired measurement or angle mark with your starting point.
- Use a pencil or marking knife along the edge of the ruler to draw your line.
- The tool supports marking 45-degree and 90-degree angles directly.

Figure 4: Using the Carpenter Square to mark a line on a wooden block.

Figure 5: Demonstrating 45/90 degree line marking capabilities.
4.2 Measuring
The square features clear, engraved scales for precise measurements. It can be used for:
- Depth Measurement: The vertical scale allows for measuring depths up to 64mm (2.52 inches).
- Edge Measurement: The horizontal scale provides measurements along the edge of the material, with ranges up to 76mm (2.99 inches) and 112mm (4.41 inches) depending on the orientation.

Figure 6: Measurement ranges indicated on the Carpenter Square.
5. Maintenance
To ensure the longevity and accuracy of your Carpenter Square:
- Cleaning: Wipe the tool with a soft, dry cloth after each use to remove dust, wood particles, or marking residue. For stubborn marks, a slightly damp cloth can be used, followed by immediate drying.
- Storage: Store the square in a dry place, away from excessive moisture or extreme temperatures, to prevent potential damage to the aluminum alloy or its anodized finish.
- Inspection: Periodically check the assembly screws for tightness. If they become loose, retighten them with the Allen key.
6. Troubleshooting
This section addresses common issues you might encounter with your Carpenter Square.
6.1 Inaccurate Markings
- Loose Assembly: Ensure all screws are securely tightened. A loose connection can lead to slight shifts and inaccurate lines.
- Improper Placement: Make sure the base of the square is flush and stable against the workpiece edge. Any gaps or wobbling will affect accuracy.
- Worn Marking Tool: Use a sharp pencil or marking knife for clear, precise lines.
6.2 Difficulty Reading Scale
- Poor Lighting: Ensure adequate lighting when taking measurements.
- Dirt/Debris: Clean the scale thoroughly to remove any obstructions that might obscure the markings.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | Carpenter Square |
| Material | Aluminum Alloy |
| Surface Treatment | Anodized |
| DIY Supplies | Woodworking |
| Angle Measurement | 45/90 Degrees |
| Dimensions (approx.) | Height: 112mm (4.41 in), Width: 79mm (3.11 in), Base Length: 85mm (3.34 in) |
| Weight (approx.) | 0.095 kg |
| Package Dimensions (approx.) | Length: 11 cm, Width: 8 cm |
| Origin | Mainland China |

Figure 7: Detailed dimensions of the Carpenter Square.
8. User Tips
While no specific user reviews or Q&A were provided for this manual, here are some general tips for using woodworking squares effectively:
- Always double-check your measurements before making any cuts.
- Use a sharp pencil or a fine-tipped marking tool for the most accurate lines.
- When marking, apply consistent pressure to the square to prevent it from shifting.
- For repetitive tasks, consider clamping the workpiece and the square to ensure stability.
9. Warranty and Support
For warranty information, returns, or technical support, please contact the seller, GDART Official Store, directly through your purchase platform. Keep your purchase records for reference.





