Creality Official Upgrade K1C Nozzles, Quick-Swap 3D Printer Nozzle Kit, Copper Alloy and Hardened Steel Nozzle Suitable for Creality K1C/ Ender 3 V3/ Ender 3 V3 Plus 3D Printers (1PCS, 0.4mm) Creality Official Upgrade K1C Nozzles, Quick-Swap 3D Printer Nozzle Kit, Copper Alloy and Hardened Steel Nozzle Suitable for Creality K1C/ Ender 3 V3/ Ender 3 V3 Plus 3D Printers (1PCS, 0.4mm) Features 100% Creality Original - The Creality K1C nozzle heat break is an all-metal integrated design for swift installation and easy replacement, no longer worry about leaking. Note: Only work for K1C/ Ender 3 V3/ Ender 3 V3 Plus. Supports High-speed Printing up to 600mm/s - With a 30% increase in the overall hot melt section, including a 28.5mm length large hot melt section and 32mm/s high flow, this kit enables printing speeds of up to 600mm/s. Precision Detail - Tightly fit joints effectively prevent filament leakage during printing. With inner hole roughness Ra0.4, ensuring smooth filament feeding. All Metal Design - All-metal design boasts enhanced performance and high temperature resistance up to 300C which support PLA, ABS, PETG, TPU, PP, PC, PLA-CF, PA-CF, PET-CF multiple filaments printing. After-sale Service - There are more than 20 engineers for after-sales service and provide 24/7 customer service with 1-year limited and lifetime technical assistance. Please contact us via ask a questiondirectly to get the professional assistance. Fast and Free Shipping You're already purchasing the item. Why pay additional for shipping, especially slow shipping? We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee We are committed to making sure that you leave this transaction satisfied. If you're unhappy with the product for any reason, you may return it back for your money-back or a replacement within 30 days. No questions asked!