TS100-style heat-set insert tips for clean, repeatable threaded-insert installation. This set gives you brass insert tips and a TS100-style heating cartridge/adapter for common M2-M8 threaded inserts used in 3D-printed parts. Why use insert tips instead of a normal soldering point? Flat, size-matched faces help push inserts squarely instead of rocking them in at an angle. Brass tips spread heat into the insert body for more controlled plastic flow. TS100 / TS101 / Pinecil fit makes it a compact setup for printers, printed jigs, and bench repairs. Specifications Application: installing heat-set / threaded inserts in plastic printed parts Insert range: common M2-M8 threaded-insert sizes Iron compatibility: TS100, TS101, Pinecil, and compatible TS-style irons Tip material: brass insert tips with knurled bodies for handling Fitment and pairing Use with a heat-set insert press such as the Stealth Press Zero for straighter, repeatable insert depth. Pair with black nickel coated threaded heat-set inserts for Voron and other printed builds. If your iron uses 900M / T18-style tips instead of TS100-style cartridge tips, use the generic soldering iron heat-set insert tips instead. What this is not Not a complete soldering iron. Not a standard electronics soldering tip set. Not for cold-pressing inserts; heat and controlled pressure are still required. “fit and work nice” — verified buyer review