• partial_accumen@lemmy.world
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    4 days ago

    Not an impact drill, a hammer drill.

    An impact driver would impart rotational shocks, which is bad enough. A hammer drill imparts straight-ahead shocks into the drill hole, which if we’re talking shock to the cabinet holding spinning hard drives would be murder on them. These are typically used to drill through things like multiple feet/cm of concrete. Watch the drill bit in this animation punch into the hole and back out with the hammer action. It happens much faster in real life of course, probably 5-10 times a second I’d guess

    This is apparently the type of drill this guys used.