Yes, straightened the bent crank arm no problem. I used to be an Industrial Mechanic (Millwright) and had easy access to some incredible machinery, including a 50 ton hydralic press. Nothing to it but, sorry, no pictures of the press. That said, the crank proved just fine to use, however; trust me, I would never attempt to straighten and alloy crank...

Ooh, a millwright. Very cool. I must have straightened a few steel cranks a long time ago. Nope, would not do it with aluminum. I really like working with steel in many ways. Steel talks to me, kind of like my cooking.

I'm going to guess the black, bonded bike with aluminum lugs and Modolo brakes.

A few decades ago, we held an annual party called "The Huffy Throw." It was the original, though bike tosses quickly became part of many mountain bike events around the country. Fat City Cycles sent up a crew each year and once brought a 500 lb bike named "Cap'n Crunch" they built from a diesel locomotive connecting rod and a bunch of saw mill blades. It had a steel cottered crank, and the bike was equipped with a special bracket to hold a Park crank arm straightener (HCS-1). Every time the bike fell over, it would bend the crank, and the HCS-1 would be pulled out to bend it back again. That arm was bent in and out quite a few times during the event and never failed.

I tried straightening a Greenfield kickstand in my vise one time. There was only a slight kink, but it snapped as soon as I started putting pressure on it.

The Greenfield kickstands I've seen are made of aluminum. I'm not surprised it snapped.