1. Product Overview
The Tolsen 35059_SML 9-inch Mini Spirit Level is a compact and versatile measuring tool designed for accurately determining horizontal, vertical, and angled surfaces. Its durable construction and magnetic base make it suitable for various tasks in construction, carpentry, and DIY projects.

Figure 1: Top-front view of the Tolsen 9-inch Mini Spirit Level, showing the three spirit vials for horizontal, vertical, and 45-degree measurements.
2. Key Features
- Professional Quality: Constructed for durability and reliable performance.
- Multi-directional Measurement: Equipped with three vials to determine horizontal (level), vertical (plumb), and 45-degree angles.
- Magnetic V-Groove Base: Features a strong magnetic V-groove along the base, allowing it to securely adhere to metal surfaces and pipes for hands-free operation.
- Lightweight Design: The body is lightweight, ensuring ease of handling and portability.
- Tapered Ends: Designed with tapered ends for improved access in tight spaces and protection against impact.
- Compact Size: At 9 inches (22.9 cm) in length, it is ideal for toolboxes and belts.

Figure 2: Side view of the spirit level, highlighting the clear vials for accurate readings.
3. Setup
The Tolsen Mini Spirit Level requires no assembly or batteries. It is ready for immediate use upon removal from its packaging.
- Unpack: Carefully remove the spirit level from its packaging.
- Inspect: Before first use, inspect the level for any visible damage. Ensure the vials are clear and the bubbles move freely.
4. Operating Instructions
To achieve accurate measurements, ensure the surface you are measuring is clean and free of debris.
4.1. Measuring Horizontal (Level)
- Place the bottom edge of the spirit level firmly on the surface you wish to check for levelness.
- Observe the horizontal vial (typically the longest one in the middle).
- The surface is level when the air bubble is centered precisely between the two indicator lines on the vial.
4.2. Measuring Vertical (Plumb)
- Hold the side edge of the spirit level against the vertical surface you wish to check for plumbness.
- Observe the vertical vial (typically located at one end).
- The surface is plumb when the air bubble is centered precisely between the two indicator lines on the vial.
4.3. Measuring 45-Degree Angles
- Place the spirit level against the surface you wish to check for a 45-degree angle.
- Observe the 45-degree vial (typically located at the other end).
- The surface is at a 45-degree angle when the air bubble is centered precisely between the two indicator lines on the vial.
4.4. Using the Magnetic Base
The integrated magnetic V-groove allows the level to attach to ferrous metal surfaces, such as steel beams or pipes, for hands-free leveling. Simply place the magnetic base onto the metal surface, and it will hold in place while you adjust or mark.

Figure 3: The Tolsen Mini Spirit Level, illustrating its compact size and the clear labeling of its model number (35059) and length (22.5 cm or 9 inches).
5. Maintenance
- Cleaning: Wipe the level clean with a soft, damp cloth after each use. Avoid abrasive cleaners or solvents that could damage the finish or the vials.
- Storage: Store the spirit level in a dry place, away from extreme temperatures and direct sunlight. Protect it from impacts to maintain its accuracy.
- Inspection: Periodically check the vials for clarity and ensure the bubble moves freely.
6. Troubleshooting
Spirit levels are generally robust and require minimal troubleshooting. If you suspect inaccuracy:
- Check for Damage: Inspect the level for any signs of bending, twisting, or damage to the vials. Even minor damage can affect accuracy.
- Surface Consistency: Ensure the surface you are measuring is flat and clean. Uneven surfaces can give false readings.
- Calibration Check (Basic):
- Place the level on a flat, seemingly level surface and note the bubble's position in the horizontal vial.
- Rotate the level 180 degrees on the same spot.
- If the bubble returns to the exact same position, the level is accurate. If not, the level may be out of calibration or damaged.
- Environmental Factors: Extreme temperature changes can temporarily affect the liquid in the vials, though this is rare for basic spirit levels. Allow the tool to acclimate to the environment.
7. Specifications
| Attribute | Value |
|---|---|
| Brand | Tolsen |
| Model Number | 35059_SML |
| Length | 9 inches (22.9 cm) |
| Material | Metal |
| Color | Yellow |
| Style | Magnetic |
| Operation Mode | Manual |
| Product Dimensions (approx.) | 22.9 cm (L) x 2.5 cm (W) x 5 cm (H) |
| Weight | 115 grams |
| Batteries Required | No |
8. Warranty and Support
Specific warranty information for the Tolsen 35059_SML Mini Spirit Level is not provided in this manual. For details regarding warranty coverage, returns, or technical support, please refer to the retailer's policy where the product was purchased or contact Tolsen directly through their official website or customer service channels.
Always retain your proof of purchase for any warranty claims.





