4PCS 0.4MM Nozzle Hotend for Anycubic Kobra X Combo 3D Printer, Integrated Hardened Steel Nozzles Quick-Detachable Extruder Print Head Kit Hot End Replacement

["【Exclusive Compatibility】This integrated nozzle kit replacement is compatible with Anycubic Kobra X Combo 3D printer.","【One‑Piece Leak‑Resistant Design】Hardened steel nozzle and stainless steel heat break are integrally joined, removing structural weaknesses and clearances to avoid material leakage and blockage at the key connection.","【Optimized Thermal Management】Featuring excellent thermal insulation, it effectively isolates heat, prevents heat creep, and ensures a stable thermal gradient for consistent, reliable printing.","【Ultra-Smooth Inner Bore】The mirror-like interior surface reduces friction and eliminates weak points that cause material buildup, virtually eliminating jams and print failures.","【High Wear Resistance】Hardened steel delivers exceptional hardness and effective wear resistance—especially when processing abrasive materials or operating under high pressure—extending nozzle service life."]