Outer diameter: 7mm
Inner hole: 4.2mm
Length: 28mm
Material: Stainless steel
Type: All pass throat (need to cooperate with 4*2 Teflon tube)
Application: For 3D printer
About MK8 Nozzle
Upgrade for MK8 Exturders
Material: stainless steel and Brass
Thermal Barrier Tube:Aluminum Alloy
1.75mm Thermal Barrier Tube
Used on the inside of nozzles and throat tubes, these degrade over time.
Replace your Teflon tube to keep your extruder running in top shape and prevent thin-wall conditions or holes from developing (see example photos).
Over time, the soft Teflon gives way to the plastic being pushed against the same spot and eventually results in worn thru tubes, creating extrusion or loading/unloading issues.
JUTHOURTECH