Maximize Your 3D Printing Potential with the VIGRUE 600-Piece Heat-Set Insert & Tool Kit! Are you tired of stripped plastic threads or loose screws ruining hours of careful 3D printing? Step up to professional-grade assembly with the VIGRUE 600Pcs Heat Set Inserts Kit. Engineered specifically for makers, engineers, and DIY hobbyists, this comprehensive solution allows you to effortlessly melt durable brass threads directly into your 3D printed or plastic parts. Why Choose VIGRUE? The Ultimate 600-Piece Assortment: Unlike smaller sets, our 600-piece kit ensures you always have the exact M3 size for any scale of production or tinkering. Smart Digital Soldering Iron: Take the guesswork out of thermal embedding. The intelligent digital iron allows fine-tuned temperature settings to perfectly match your specific filament's optimal reflow point. Flawless Installation Every Time: The specially machined tips feature ideal geometry to eliminate the risk of surface damage or burrs, keeping your prints looking pristine and structurally sound. Industrial-Strength Reliability: Made from premium brass with cross-knurled patterns, our inserts provide a tight, positive bond inside the plastic, boasting high torque resistance that won't strip over time. Whether you are building mechanical assemblies, robotics enclosures, drone frames, or customized plastic parts, the VIGRUE Heat-Set Kit ensures your creations are robust, reusable, and ready for action. Package Includes: 1 x Digital Display Soldering Iron 1 x Heat Insert Tip Adapter & Connecting Rods 4 x Heat-Set Insert Tips 600 x Premium Knurled Brass Threaded Inserts 2 x Allen wrenches 1 x Tweezer 1 x soldering iron holder 1 x Storage Organizer Case