Sears hates me. I've been bringing back their screw drivers for decades. They suck in my humble opinion. I guess I'm not into big business/big money, but I can see absolutely no reason for making a tapered freakin' slotted screwdriver, except it is "universal" (it FITS nothing in the universe !!!) Most brands tips are too brittle too. I restore antique motorcycles, 1930's thru 50's, for a living. Tapered screwdrivers tear up screw slots. I want to make a set of my own. I can't find enough sizes to cover all the different size screw slots I use. I like them to fit snug and cover the full length and full height of the slot. So my questions are, has anyone made their own hollow ground screw drivers, what type of steel is best for them, how hard on the Rc scale is hard enough, but not too brittle and and how did ya go about doing the grinding?