This is MK8 style 0.4mm nozzle (2pcs), it is made from a 360 brass base material and plated with TwinClad XT coating. TwinClad XT is a nickel composite coating designed for very low friction. It offers one of the lowest coefficient of friction, better then nickel with PTFE codeposit. This coating is also very hard and abrasion resistant. If you are working with abrasive filaments like Carbon Fiber, Aluminates or metal filed, this will greatly improve the life of your nozzle. The nozzle has M6 thread, works with many filaments PLA, ABS, HIPS, Nylon, CF, etc. Fits: Replicator 1, Replicator 2, Replicator 2x, Replicator 5th Gen, Replicator Mini, Replicator z18 and other 3D printers.
Compatible replacement for use on MK8 and MK7 type hot-ends with a M6-threaded heater block
Extra low friction for smooth plastic flow
Very good release properties (eliminate clogging)
Made in USA