FEITA ST Soldering Iron Tips Heat Set Insert Tool Kit, Threaded Brass Inserts M2 M2.5 M3 M4 M5 M6 M8 for 3D Printing & Plastic, Compatible with TS100 Pinecil Mini Portable Soldering Pen Stations

The FEITA ST Heat Set Insert Tool Kit is the essential accessory for anyone working with 3D printed parts, plastic enclosures, or DIY electronics. By using your existing TS100, Pinecil, or other ST-series soldering iron, you can quickly and permanently install brass threaded inserts into plastic — creating strong, reusable metal threads without glue or tapping. Unlike direct screwing into plastic (which strips easily), heat-set inserts melt into the material and become flush with the surface. This allows you to screw and unscrew bolts hundreds of times without damaging your part. What’s Inside the Metal Storage Box Brass threaded inserts in 8 sizes: M2, M2.5, M3, M4, M5, M6, M8 (varied quantities per size); 1-piece st soldering tip; Durable metal case with foam or compartment slots for organization Note: Soldering iron is sold separately. Compatibility This kit is specifically designed for soldering stations and portable irons that use ST-series soldering tips, including: TS100 / TS101 Pinecil (original & V2) – ST-style tips Miniware, Sequre, and other ST-compatible pens FEITA 103 soldering irons How to Use Inserts a compatible ST flat or conical tip into your soldering iron. Set the temperature to approx. 200°C–250°C. Place the brass insert onto the tip. Align it with a pre-drilled hole (slightly smaller than insert outer diameter). Gently press down until the insert sits flush with the plastic surface. Remove the iron and allow 5–10 seconds for the plastic to cool. Applications 3D printed drone frames & RC car parts Raspberry Pi / Arduino enclosures Prosthetics and mechanical assemblies Electronics repair (laptop hinges, screw bosses) Prototype and product development Why Choose FEITA ST Heat Set Kit? 7 sizes (M2–M8), One kit covers small to large builds Compatible with TS100/Pinecil, Use your existing portable soldering pen Metal storage box, Keeps inserts organized, no lost parts Brass material, Excellent heat transfer & anti-corrosion Package List 1 × Metal storage box 1 x ST-style Soldering Tip 7 x Assorted brass heat-set inserts (M2 / M2.5 / M3 / M4 / M5 / M6 / M8) Ideal For 3D printing hobbyists & professionals Electronics repair technicians RC and drone builders DIY makers and prototype engineers Upgrade Your 3D Printing Workflow Today Stop struggling with stripped plastic threads. Add the FEITA ST Heat Set Insert Tool Kit to your cart and start creating durable, professional-grade connections in all your plastic and printed parts.

• [Complete 7-Size Threaded Brass Insert Set]: Includes M2, M2.5, M3, M4, M5, M6, and M8 brass heat-set inserts, covering all common thread sizes for 3D printing, plastic enclosures, and DIY electronics. Create strong, reusable metal threads in PLA, ABS, PETG, nylon, and other thermoplastics with ease.
• [Designed Specifically for TS100, Pinecil & ST-Style Soldering Irons]: Fully compatible with TS100, Pinecil, Miniware, and other soldering stations that use ST-series soldering tips. The inserts are optimized for heat-set installation using your portable soldering pen — no extra tools needed. Great for field repairs and workshop use.
• [Fast & Professional Heat-Set Installation]: Simply heat the insert via your ST soldering tip, press it into a pre-drilled hole, and let it cool. Creates permanent, flush-mounted metal threads that are far stronger than tapping directly into plastic. Perfect for hinges, screw bosses, and frequent-assembly parts.
• [Premium Brass Construction & Corrosion Resistance]: Each insert is machined from high-quality brass, offering excellent thermal conductivity for quick heating and strong bonding. Brass also resists rust and wear, ensuring long-lasting performance even in high-use applications.
• [Sturdy Metal Storage Box for Organization & Portability]: Comes in a durable metal case with compartments to keep all M2-M8 inserts sorted and protected. Ideal for makers, repair technicians, 3D printing enthusiasts, and field engineers who need a compact, organized toolkit.