Tool help/advice

I've always used an impact driver for stuck fasteners.

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I bought that exact set several years ago when I needed to remove the chrome strip in the front edge of a 65 Newport. I think 8-10 screws. 3-4 came out with a phillips the others I used this tool. First two it did extremely well then it got dull. Had to drill the remaining out. I’ve used up all 4 sizes now & it’s not much good unless it’s a newer soft screw. It might work on the 81 Imperial I have to strip as I’m sure those are soft fasteners
 
As Big John commented, using a pair of small vise grips to grab the thread from the rear and work it out usually works like a charm for me, once it is threaded out a bit I can then use the same small vice grips from the front on the head of the screw.
On some small occasions even the back of the screw is rusted away so what I do then is use a cutting wheel to cut the back of the screw flush with the panel is it screwed into. Once that is done since that area is typically a double layer of skin I use a flat screwdriver to work between the skins and it pops the screw out 99 percent of the time. It only takes a few mins to do it.
 
$50.00 for a used one?

$20 for a new one?

I bought that exact set several years ago... First two it did extremely well then it got dull. Had to drill the remaining out.
Well, sure, they get dull just like any drill bit or chainsaw. I wonder if the cobalt version is tougher than the titanium. Anyway, $20 gets you a new set. Just think of all the money you'll make by gently removing those unobtanium trim pieces! :thumbsup:
 
I now make my own penetrating oil. 50/50 ATF and Acetone. I believe it works better then any other penetrating oil I've used.

Agreed, I have also added in a splash of brake fluid as it has corrosion inhibitors. Shake well, and presoak a day or 2 in advance of any tool touching hardware.
 
Some times a part of a rubber band works.
Lay it over the screw head, smack the screw driver with a hammer to seat the rubber. It will help fill in the Phillips slot and help grip. Some times light taps with the hammer while twisting will set the screw driver and help get it going.
 
I've had some success putting a dab of valve grinding compound in the screw head to improve grip. Thic of course in conjunction with penetrant and a good 'driver. The JIS sounds interestin
 
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