Okay, This is hard to explain..I actually found one today at Home Depot, but the stepped threads were too big. What I'm looking for is a screwdriver style handtool that starts screw threads, but with small stepped threads like a stepped drill bit, but at least the size of tremolo bridge screws. Too bad the tool I found at Home Depot had larger screw stepped threads. I should probably still get it, just cause its so conevneinet to manually start alot of larger size screws with this handtool.