This Manual Hard Drive Destroyer seems to be quite effective in rendering a disk full of data safe from prying eyes. Actually we’re guessing that if you really really wanted to retrieve the data, and had CIA levels of cash, you probably could. Which is why +600 degrees of furnace fire is really your only choice if you want to make sure your information is gone for good.
It takes less than 15 seconds to destroy each hard drive. All one needs to do is to insert the proper drive height adaptor (if applicable) into the slot and crank the handle 8 rotations. The internal workings of the unit press down on the drive, bending it approximately 90 degrees. The MHDD then pushes the destroyed hard drive out for easy disposal.