MK8 Extruder 1.75mm/0.4mm Nozzle Throat Filament Heater Block Thermistor Hot End Kit for Printer. Printer extruder hot end requires heat sink to operate properly – metal base, aluminum block, or any other type of cooling device. This set includes a 30mm long stainless updated tube for low friction, trouble free print, and nozzle can be exchanged or replaced with many different types of nozzles. There are also heating tube, aluminum heating block and thermistor of good quality. It would be a great replacement for old extruder.

SPECIFICATIONS:

Type: MK8

Material: Aluminum, stainless steel and brass

Installation: External thread connection

Nozzle Size: 0.4mm

Throat Length: 30mm

Aluminum Block Size: 20mm x 20mm x 10mm

Cable Length: 103.5cm / 40.7″

Working Temperature: -40~+ 260°C（-40~+ 500°F）