Hi Guys, just like to advise all CR6-SE owners 'NOT' to purchase any nozzle that is 'NOT' CR6 compatible. CR6's have a nominal wrench size of 6mm (0.236in), generic Creality nozzles are 7mm (0.275) Look at my earlier post regarding how to ruin your hotend. After numerous repairs I realized that the Creality nozzles do not suit the CR6. Only CR6 nozzle's will work with your CR6 machine