Kit includes: one nozzle Orifice size available: .4mm Nozzle Detail: Hardened Steel Nickel Plated and Body is Copper Alloy Support 500°C High Temperature, Wear Resistant, Abrasion Resistant, Corrosion Resistant Thread: M6 Filament size: 1.75mm Compatible with V6 hotend and most of the 3d printers using M6 tread hotend Designed by GO-3D Print in California Product Description The nozzle is M6 thread 0.4mm with hardened steel nickel plated nozzle and copper alloy body for V6 Hotend 1.75mm filament 3d printers. If you are working with abrasive Carbon Fiber, Stainless Steel, wood filled or any other metal filled filaments, this will greatly improve the life of your nozzle.