Nicely made enclosure. Easily worked by drilling or by using a chassis punch. The 10” by 6” accommodates most simple circuits. Good price too…

Dimensions are perfect for a 2W tube amp project that I'm gathering parts for. Unfortunately, I didn't carefully consider the thickness of the sheet metal. 40 thousandths would probably be OK if it were steel (~20 gauge). But with aluminum, the box is a lot more flexible than the amps I'm used to and I anticipate that it would sag a bit with the power transformer that I'll be using. I'll figure out something to use this box for, but I WON'T be using it for the tube amp that I'm building.

This is the perfect project box for the 6 min 1 loop/effects switcher Currently being built. The low cost and quality of this product was a surprise and I'm glad I found this dealer.

The Hammond chassis box is inexpensive, sturdy, and easy to drill and cut to build my preamp power supply. You might want to leave the protective plastic on while you drill holes and cut circles that mount vacuum tube sockets and remove only as much plastic at a time as you need to while you bolt on transformers, chokes, pilot lights, switches, etc.

Good quality

The Hammond chassis boxes are great! I have used these chassis boxes from AES since 2007 when I started building my own tube amplifiers. They are economical, easy to work with, durable and look great. I typically have 9- 12 pounds of Hammond transformers or chokes mounted on the chassis with no problem at all. I personally like to customize the Hammond Chassis Boxes by covering the front and two sides with 1" x 3" pine wood and staining it with Red Walnut stain. I tried this on my Audiophile 6L6 GE tube amp chassis and both power supply chassis and now the tube phono stage preamp chassis. It all matches and looks great.
I highly recommend the Hammond Aluminum Chassis Boxes to anyone wanting to build their own tube equipment. Layout the tubes, transformers, chokes and can capacitors anyway you like to make it your own design and style.