How to avoid stripping Screws when disassembling a Camera

[lxdude]

I have used P.B. Blaster before for some tough problems. One was a stuck retaining ring on a lens that the manufacturer refused to touch (too old, no parts) so there was literally nothing left to do. You may have some cleaning to do afterwards, but at least it works. I spray it in a cup and apply it with a toothpick or a needle. Warning- a little goes a long way.

It's good stuff. And the warning is very apt.

[mgb74]

The OP's approach of rapid, short application of force would appear to imitate the effect of an impact wrench.

Check out gunsmith tools for a variety of screwdriver sizes (i.e. http://www.midwayusa.com/viewproduct...tnumber=510765). One problem with cheap screwdrivers is that the ends are ground at an angle (looking from the side) so that only the top edge of the screw slot contacts the screwdriver. Better screwdrivers are ground so that there is contact the full area of the screwdriver bit.

PB Blaster is well known to anyone who drives a old British car.

[lxdude]

PB Blaster is well known to anyone who drives a old British car.

Like say, a masochistic owner of a '74 MGB?