Hahaha, come on guys, gunsmith screwdrivers are not tapered like a wedge, they are tapered to a certain point that flate and straight to the tip, and the shaft is the same size as the tip for strength, if you use the one from a standard tool kit, you'll see that they are tapered to the tip, there fore the slot on the bolt will only contact the top of the bolt head slot, with a wedged screwdriver, you will buger it up because the driver will go up when you trun it and the gunsmith screwdriver will stay in the slot, because the driver is straight not tapered, and with the proper screw driver and the proper head size, the bolt head will look new no matter how much times you take the bolt out and in again