Extruder MK8 J-Head HotEnd Full Kit 1.75MM

From the shop's description

3D Printer Head MK8 Extruder J-head Hotend Nozzle 0.4mm Feed Inlet Diameter 1.75 Filament Extra Nozzle Nozzle diameter: 0.4mm Movement axis speed: 40m Nozzle flow rate: about 24cc/ h Print Material: ABS PLA 1.75mm Nema 17 Step motor : 42*42*40mm Cooling fan operating voltage : 12V with cable Extrusion head heating voltage : 12V, preventing 5-9 ohms. K-type thermocouple 500MM link line. NTC 100K B=3950 Heat sink : 40*40*10mm Extrusion head : voltage 12V, power 40W