The Adel Nibbler tool has been around for quite some time - it is one of those tools you know is available and wish you had one, but can never find to buy! Here it is.
The Adel Nibbler tool can be used to cut notches, holes, and other shapes in sheet metal and other thin materials like copper clad printed circuit board, chassis material, thin panels, etc. It can cut through 18 gauge steel (.047") or 1/16" aluminum. Use this tool to make neat cutouts for meters, digital displays, feedthrus, etc.
Spare blades are available.
Price = $19.95 plus $5 s/h in the US. DX s/h at cost.