Very nice cabinets for storing end mills , drill-bits, and other small tooling. if you fill the drawers with the drill bits for end mills be careful. What happens when you try to open a drawer especially if you stack the cabinets on top of each other the whole unit wants to slide. But I understand that’s not the manufacturers problem or fault. What I did was take a little sheet metal at the back of the units and weld the units together. I made it so I can slip a piece in an out in case I wanted to separate them.