I bought a Bosch PSB 650 RE Impact Drill and I have some question about how to use it for driving screws. I know it's not its primary function but for a few screws here and there it should work. I have a magnetic adapter with a bit perfect for the screws, the drill has a variable speed control on the handle and by pressing the switch button deeper I increase the speed of rotation.
So here's my concern,
I tested with a screw, I pressed the switch button gently and it started to screw about half way then the screwing stopped, the drill sounded like it was spinning but it didn't had the power to insert the screw further. I pressed a little harder still the same, It sounded like it was turning but it didn't. To screw more I had to press harder on the handle to increase the speed and then it screwed all the way.
Is this a problem or this is how it should behave? Can the drill get damaged while it's working but not screwing cause it doesn't have enough power?
Best Answer
That is how it should work. The drill is designed so that less pressure on the trigger means less power to the drill. It could damage the driver if you were to keep it in that state of trying to turn and failing for an extremely extended period, but not if its momentary like you describe.
In short - good question but you're worrying too much. :)
Oh - yes - by the way - actually this is what it was designed for - exactly so. It's designed to apply torque to bolts and screws and drill bits.