I volunteer at a local museum and we use common slotted screws by the 100's (cuz they are curatorially correct for the era), To make the task more manageable I use a hand brace with a slotted driver bit. The bit has what I call a spring loaded foreskin which helps hold the screw in position for the first few turns. The bit is at least 20 years old. Unfortunately, our last bit - bit the dust and snapped.
I can find online bits that will drive slotted screws but I cannot find any that have the spring loaded foreskin. Does anyone here know where they might be found? Or perhaps has one they would like to sell?
Thanks in advance for any suggestions.