Can't deny it helped, but it was not simply that a longer driver 
increased the torque.

But a longer driver might make it easier for you to increase torque as 
follows, by.

- applying a wrench to the blade of a screwdriver, increasing the 
leverage applied.
- applying more force, perhaps by getting a better grip
- applying the force square to the center of rotation (where the force 
acts on the driver) (i.e., getting a better angle on it).

My 0.02
Don

.
On 5/20/2014 5:31 PM, Mick Dowling wrote:
> Back when I was using a spiral ratchet screwdriver, I would often lock it in
> the extended position to shift a stubborn screw. The extra length makes a
> huge difference. I gather you get an increase in torque from the extra
> length.