QUOTE: Originally posted by jimrice4449 I suppose most of us have discovered how handy cordless screwdrivers are for drilling the super tiny holes we need. High torque and low speed means we drill plastic w/o melting it. I found the tendency for the drill bit (and chuck) to stay in the work and pull out of the scredriver annoying and fixed the problem. I drilled a no 42 hole in the gizmo on the screwdriver that holds the bit and tapped it for an 8-32 thread (My local Ace hdwe store sells the tap and the appropriate drill bit as a set) I then got the shortest 8-32 thumb screw I could find and, Voila! the drill, chuck and scredriver remain attached unti I want to separate them. As a bonus it makes it much easier to change drill sizes if you have a project requiring different sizes, Just chuck the various bits in separate chucks. Half a turn on the thumb screw and swap.
QUOTE: Originally posted by jimrice4449 No these are chucks (Micro-Mark sells them, probably others) that have the six sided shank that fits into the female counterpart on a cordless screwdriver Instead of the Phillips head or whatever screwdriver bit you use these chucks that will tghten down to where they'll hold as small as #80 dril bit. The cordless screwdrivers are of such a size and have convenient controls that they're ideal for drilling in models except for the (former) tendency to leave the drill bit and the chuck in the freshly drilled hole when you try to back the drill out of the hole.