[COMPATIBILITY] Compatible with TS100/101 soldering iron tip and standard 936 iron tip. Fit M2, M2.5, M3, M4, M5, M6, M8 nuts & inserts used in 3D printers. [EXCELLENT HEAT CONDUCTION] Brass material ensures optimal heat conduction for quick melting. Prevents nut tilt and allows precise embedding into plastic parts. [EASY REPLACEMENT] Hand-tightened knurling joints for easy disassembly and replacement of different threaded pressure heads. Cooling state installation for convenience. [PRECISE EMBEDDING] Smaller embedding distance compared to competitors, preventing plastic deformation after embedding. Durable construction for prolonged use. [ MATERIALS] Brass male and female heads for durability. Machined with TS100‑C4 iron core for performance. Comes in a plastic box for storage., Manufacturer: Jelquix