Delete Group - ICC specific Deletion

Summary

Delete Group - ICC specific Deletion

Content

Hi Guys, 

Happy New Year to All !

sub: I want to delete all items under specific item class. 

From advance search we can able to select only 600 items at a time, then i can able to add those items to delete group. 

Why I can't able to search all items for that specific ICC and why i can't able to add all items to new delete group. 

If i am having 40K items, i need to use the delete group for 80 times. 

 

Please suggest if we are having any other ways.

Regards,