The pocket-sized (2″x2″x1-1/8″) Magnetizer/Demagnetizer (item 22219) from Duluth Trading Company is one of those handy little gadgets for your shop. It has a positive opening into which you can insert your screwdriver, slide it back and forth, and it’s magnetized. Need it degmagnetized? Slide it into the negative opening, and it’s done. This sells for $4.95.