This machine is awesome. BOW wasn't kidding about it weighing 97lbs. After muscling it onto a workbench, I gave it a spin...
The BOW Industries MHDD-1 "Hard Drive Destroyer"
An obsolete 4.3GB SCSI drive
The drive is loaded in the destroyer
...A few turns of the handle
Not going to run again
I spent a good bit of time today smashing old hard drives and showing it off to anybody who happened by. :-)
Video of the MHDD-1 in action [48MB]