[pianotech] Impact driver advantage

[David Boyce]

What's the secret of the impact driver's success then? Is it that high 
torque is applied very suddenly, breaking any bonds before the blade can 
even slip out of the slot?

Best regards,

David.

>
> In the years since I've been using impact tools to pull and install 
> big screws (etc) this sort of thing has ceased to be a problem.
>
> Willing to be spoiled,
> Ron N

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