I got a few of those for our workshop and they're a time saver if you're panel building. We just use them to nip up the terminations for initial assembly purposes then go over the whole panel once it's complete and do a final tightening on everything with a torque screwdriver.The Bosch Go 3.6V driver seems to a be a popular one. Not got one myself though. Have to get them online as they are not UK release.
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Using one of those impact screwdrivers wouldn't be acceptable, there's no control and they're going to overtighten or strip threads.