This is a nozzle for a 3D printer extruder, compatible with various 3D printers, such as Makerbot, Ender, Anet, among others. It is made of premium, high-precision solid and durable brass material that is wear-resistant and can provide a long service life. The thread is 6mm in diameter and the hole is 1.0mm, ideal for 1.75mm filament.
