1. Introduction
The Bernzomatic 368600 Cordless Butane Micro Torch Soldering Kit is a versatile, portable tool designed for various precision tasks including soldering, heat shrinking, and other detailed work. This manual provides essential information for safe and effective use, setup, operation, and maintenance of your micro torch kit.
2. Safety Information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Always use in a well-ventilated area.
- Always operate the micro torch in a well-ventilated area.
- Keep out of reach of children.
- Butane is extremely flammable. Store away from heat, sparks, open flames, and other ignition sources.
- Do not expose the micro torch or butane canisters to temperatures above 120°F (49°C).
- Ensure the torch is completely cool before refilling or storing.
- Never point the lit torch at yourself, others, or flammable materials.
- Wear appropriate personal protective equipment, such as safety glasses, when operating.
3. Components
The Bernzomatic 368600 kit includes the following items:
- Cordless Butane Micro Torch
- Various interchangeable tips (e.g., soldering, hot knife, heat shrink)
- Solder wire
- Cleaning sponge
- Tip stand
- Protective carrying case



4. Setup
4.1 Butane Refilling
- Ensure the micro torch is completely cool and the flame is off.
- Hold the micro torch upside down.
- Align the nozzle of a high-quality butane refill canister with the refill valve at the base of the torch.
- Press down firmly for 5-10 seconds until the torch is full. You may hear a hissing sound as it fills.
- After refilling, wait at least 3 minutes for the butane to stabilize before attempting to ignite the torch. This allows any excess butane to evaporate safely.
4.2 Attaching Tips
- Ensure the torch is off and cool before changing tips.
- Carefully screw the desired tip (e.g., soldering tip, hot knife) onto the torch head. Do not overtighten.
- Ensure the tip is securely fastened before use.
5. Operating Instructions
5.1 Ignition
- Ensure the butane is refilled and has stabilized (wait 3 minutes).
- Slide the safety lock (if present) to the 'unlocked' position.
- Press the ignition button. You should hear a click and see a flame.
- If the torch does not ignite, release the button, ensure the gas flow is adequate, and try again.
5.2 Flame Adjustment
The micro torch features an adjustable flame control. Rotate the adjustment knob (typically located near the ignition) to increase or decrease the flame size and intensity. This allows for precise temperature control for different applications.
5.3 Applications
- Soldering: Use the appropriate soldering tip. Allow the tip to heat up sufficiently before applying solder to the workpiece.
- Heat Shrinking: Use the heat shrink attachment or a low flame setting to evenly apply heat to heat-shrink tubing.
- Hot Knife: Attach the hot knife tip for cutting and shaping various materials like plastic or foam.
6. Maintenance
6.1 Cleaning Tips
After each use, especially for soldering, clean the tip using the provided cleaning sponge. Dampen the sponge with water and gently wipe the hot tip to remove any solder residue. This helps maintain tip performance and longevity.
6.2 Storage
Always ensure the micro torch is cool and empty of butane before storing. Store the torch and its accessories in the protective carrying case in a cool, dry place away from direct sunlight and heat sources.
7. Troubleshooting
7.1 Torch Does Not Ignite
- Check butane level: Ensure the torch is adequately filled with butane.
- Butane stabilization: After refilling, wait at least 3 minutes for the butane to stabilize.
- Clear nozzle: Ensure the nozzle is not clogged.
- Safety lock: Verify the safety lock is in the 'unlocked' position.
7.2 Inconsistent Flame
- Butane quality: Use high-quality, triple-refined butane to prevent clogging.
- Gas flow adjustment: Adjust the flame control knob to achieve a consistent flame.
- Tip cleanliness: A dirty tip can affect flame consistency. Clean the tip as described in the Maintenance section.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Bernzomatic |
| Model Name | ST550K |
| Part Number | 368600 |
| UPC | 014045686006 |
| Item Weight | 0.01 Ounces |
| Material | Plastic |
| Maximum Temperature | 2500 Degrees Fahrenheit |
| Color | Blue |
| Item Dimensions (LxWxH) | 1.75 x 5.5 x 12.5 inches |
| Manufacturer | Worthington Cylinders |
9. Warranty and Support
This product comes with a manufacturer's warranty. For specific details regarding your warranty coverage or for technical support, please refer to the warranty information provided in the product packaging or contact Bernzomatic customer service directly.




