PD Nozzles Replace Hex Key Wrenches

Hello.

I would like to replace the nozzle inserts on my BMP. I wanted to do this according to Rainer's instructions: https://community.dieselschrauber.org/en/viewtopic.php?t=17583
and I've found that the outer sleeve probably comes in several versions.
Rainer uses a 19mm ring wrench in the video he posted. My PD elements have locking nuts with an 8-sided shape and a keyway of 20mm.
Does anyone know where I can get a Bosch or Vag key? And does anyone happen to have the part number?

Best,
Jan

Check out Hazet's website and search for VW-specific tools.
hg
Herbert.

...or order it from Bosch service, or obtain it against a correspondingly high deposit.

try to borrow.

I didn't find anything at Hazet.

Or, if all else fails --> carefully insert the nipple shield with protective flanges.

Secure the workpiece in a vise, then use a sharp, high-quality gripping pliers to hold the nozzle tip.

2. Attach the second pair of pliers (as shown in the video) and, using both pairs of pliers in a synchronized manner, loosen the ferrule.

"Cannot proceed" --> Cancel the process before anything is destroyed.

Follow-up question: 8-sided, not 6-sided?
hg
Herbert.

Thank you for your responses.

@ Herbert
Yes, it's an 8-sided (hexagonal) socket. I also couldn't find anything like it at Hazet.

@ Autoservice: I've already tried the clamping method, but I'm having trouble.
Aborted because I couldn't tighten the sleeve enough in the vise.
"I can't get them out of their round shape ."

Best,
Jan