parts

This is a weld-on tank bung; a means of attaching pipe threads to a vessel. It is intended to be welded onto the wall of a tank or pressure vessel, providing solid pipe threads in a material typically too thin to be tapped for pipe threads. On some occasions I've used them for that purpose. On others, I've found that they make a great component in pneumatic cannons. More on this obscure part after the jump.

Since we inaugurated Guess This Tool, you've all proven way too hard to stump, so for this week's contest, we're mixing it up a bit and giving you a mystery part rather than a tool.

I needed a forklift when I moved my shop last month.(Of course, everyone just needs a forklift, period.) Besides the stock of steel, the heavy machines and tables, and all of the normal stuff, there's just a lot of, well, Other Stuff, and a lot of it is really heavy. Much of it I keep because I'm planning to use it in some future project. Some of it is here because I just haven't gotten around to getting rid of it yet. And some of it is even photogenic. Here's a collection of my once and future useful stuff.

All of you SAW III aficionados take note (and quickly, before something bad happens): entombed within this embodiment of evil is a small digital voice recorder just ripe for the hacking. And the price is right, too.