The nozzle and heat break adopts an all-metal integrated design, facilitating quick disassembly and convenient replacement. Upgraded 3d printer nozzles for K1C, for 3 V3, for 3 V3 Plus 3d printers. Enlarged nozzle chamber, achieving a maximum flow rate of up to 30mm³/s, and supporting high-speed printing at 600 mm/s. Heat break made of titanium alloy reduces heat conduction. Nozzle composed of copper alloy and hardened steel supports printing filaments, such as PLA, ABS, PETG, TPU, PP, PC, PLA-, PA-, PET-. Nozzle kit includes three apertures: 0.4mm, 0.6mm, and 0.8mm to meet different printing needs. [Tight Fit, No Leakage, Perfect for Printers] Tightly fit joints effectively prevent filament leakage during printing.<br><br>Inner hole roughness Ra Less than 0.4 ensures smooth filament feeding. No burrs at the opening, stable printing with reduced clogging. Colour:As Shown Material:Metal<br><br>Package Contents: 1set * Quick Swap Nozzle Kit(4pcs)<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.