We are often asked if we sell magnets that will erase hard drives. This is not one of our target applications, and most of our engineers report that they prefer a sledge hammer to a magnet when looking for external forces to disable the storage device. Magnets often distort more than erase the data. Here’s how to wipe them clean: Read about all the best options in this great article by PC Magazine, pick your favorite and begin! Apple / Mac users can view this support article.