for
MK8 heat block 3D printer: The nozzles used M6 thread, heat block thread hole is 6mm, same as MK8 MK7 UM2 CR10 etc.
No more burnt fingers for you! This is a must have tool for changing print nozzles. Having the right tools makes all the difference in the world!
Multi-size High-precision extruder nozzle: 0.2 mm 0.3 mm 0.4 mm 0.5 mm 0.6 mm 0.8 mm
Special tools: Upgrade special wrench and multi-function screwdriver can help you adjustment 3D Printer and change extruder nozzle more easy!
Note: Screwdriver maybe rust, but No effect on use.