I have a number of pocket and technician screwdrivers, with Stanley’s 4-in-1 driver (66-344) being one of my favorites. It’s thin, so it doesn’t take up a lot of space in my pocket and bag, it’s comfortable to use, and it’s fairly inexpensive.
Since the 4-in-1 is only equipped with smaller bit sizes, it is not suitable for general purpose household or office use, but it’s a great complement to full-size multi-bit drivers like the Wera Kompakt or Picquic SixPac.
Stanley says that the driver is ideal for toy assembly, battery compartments, eye glasses, and cell phones. I don’t really see how, as the screws found in eyeglass frames and cell phones are much smaller than these bits can fit, but it does give a sense of the type of usage the driver was designed for – smallish low-torque fasteners.
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The Stanley 4-in-1 technician screwdriver is typically priced at about $4-5. Included bit sizes: slotted 5/32″ and 1/8″, Phillips #0, #1.
There is also a General Tools version of the 4-in-1 pocket driver, and while it works okay, I feel its build quality to be a little behind Stanley’s.
Although small multi-bit screwdrivers like this one come in handy, I don’t recommend them as replacements for precision screwdrivers, except perhaps in a pinch. I would say that this falls between precision screwdrivers – including precision bit holders – and full size screwdrivers.