Precise Design: 0.4mm outlet diameter, 1.75mm inlet diameter, M6 thread and transparent label, easy to clean. Installation and installation identification. Smooth cutting of the phase matrix interface ensures smooth printing for a long time without clogging the quality nozzles. Superior: The 3D printer nozzles are made of high quality brass. High quality, sturdy and durable, low thermal conductivity, corrosion resistant, high abrasion resistance, ensure a long service life. Wide Compatibility: MK8 nozzles compatible with all ABS-PLA-3D printers with 1.75mm inlet diameter, such as MK8 Makerbot Anet A6 Anet A8, Corey CR-10 CR-10mini CR-10S S4 S5, Tevo Tornado, Ender 2, Ender 3 and Ender 5 etc. Excellent Cleaning Set: Comes with stainless steel cleaning needles and tweezers, flexible and stable, rotate clockwise to insert the nozzle into the needle. clean, fits perfectly; the inner wall quickly solves the problem of nozzle clogging. Package includes: 10pcs 0.4mm 3D printer brass nozzles,