This is a custom insert that has been designed to fit your Milwaukee Packout to store your M12 Nibbler and accompanying kit. It specifically fits the Milwaukee 48228435 PACKOUT Compact Organizer. Design by Jonah Pope.
 
The specific M12 Nibbler that this is designed for is model M12FNB160, link is provided here: https://www.milwaukeetool.com.au/power-tools/metal-working/nibblers-and-shears/M12FNB160.html
 
Packout and tool NOT included.