I'm a using delta ( kossel clear ) and i want to change my 0.5mm 1.75mm jhead nozzle.
I'm looking for alternatives.

Any ideas on [store.quintessentialuniversalbuildingdevice.com]

Does your Delta have a Bowden extruder with a long white tube between the motor and the hotend? The above link isn't a Bowden extruder.....

Yes mine is with long bowden.