Mechanic M60 (0.4mm) Soldering Wire 40gm

The Mechanic M60 Solder Wire (0.4 mm, 40 g) is a high-performance rosin-core solder wire built for precision electronics work. Its 0.4 mm ultra-fine diameter allows for accurate solder flow and excellent joint quality, making it ideal for SMD components, PCB assembly, and advanced repair.

Perfect for manual soldering, rework, and fine-pitch electronics.

Key Specs:
40 g spool | 0.4 mm diameter | Rosin core | Excellent wetting & flow.

Mechanic M60 Solder Wire (0.4 mm, 40 g)

For precision soldering tasks and fine-pitch component assembly, the Mechanic M60 Solder Wire (0.4 mm, 40 g) delivers the control and performance needed by electronics professionals.

Its 0.4 mm ultra-fine diameter enables accurate solder application on tight PCB layouts, SMD pads, and micro-pitch leads, reducing the risk of solder bridges and thermal stress.

The activated rosin core flux promotes fast wetting, excellent flow, and low-residue joints, ensuring strong conductivity and long-term durability of the connections.

The 40 g spool provides an excellent balance of portability and capacity, making it suitable for workbenches, field kits, and R&D environments.

👉 Full technical details below:


🛠 Technical Details

Parameter Specification
Alloy Composition Tin-lead alloy (typically 60/40 or 63/37)
Flux Content Activated rosin core
Melting Point ~183–190 °C
Diameter 0.4 mm
Net Weight 40 g spool
Wetting Performance Excellent
Post-Soldering Cleanup Low residue; minimal cleaning required
Suitable for SMD soldering, PCB repair, fine-pitch work, prototyping

⚠️ Precautions & Safety Tips

  • Use a temperature-controlled soldering iron set to 310–360 °C for best results.

  • Work in a well-ventilated space to avoid inhaling flux fumes.

  • Wear eye protection during soldering.

  • Use ESD-safe tools when handling sensitive components.

  • Store the solder wire in a sealed container to maintain quality.


💡 Use Cases & Applications

The Mechanic M60 Solder Wire (0.4 mm, 40 g) is highly versatile and suitable for many real-world applications:

  • Precision PCB Assembly
    Ideal for assembling fine-pitch SMD components and high-density PCBs.

  • IoT Device Development
    Trusted for building and repairing IoT modules, sensors, and smart gadgets.

  • Drone Electronics
    Excellent for soldering drone flight controllers, ESCs, and FPV systems.

  • Wearable Tech & Miniature Electronics
    Perfect for constructing and maintaining wearables and compact consumer devices.

  • Single-Board Computer Integration
    Ideal for fine soldering on Raspberry Pi accessories and expansion boards.

  • STEM Labs & Prototyping
    A go-to solder wire for educational labs, makerspaces, and R&D teams.


🛠️ Pair With


🎥 YouTube Insight

Watch professionals demonstrate fine-pitch soldering with ultra-fine solder wire on SMD components.


🏁 Conclusion & Value Proposition

For precise control, clean results, and professional reliability, choose the Mechanic M60 Solder Wire (0.4 mm, 40 g) for your next PCB assembly or repair project.

Enhance your soldering toolkit — available now at Electroway.

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